Manufacture, Stockholder And Distributor of Carbon Steel, Alloy Steel Bars

Designation: A 29/A 29M – 05
Standard Specification for
Steel Bars, Carbon and Alloy, Hot-Wrought, General
Requirements for1
This standard is issued under the fixed designation A 29/A 29M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.

Scope*
1.1 This specification2 covers a group of common requirements
which, unless otherwise specified in the purchase order
or in an individual specification, shall apply to carbon and alloy
steel bars under each of the following ASTM specifications (or
under any other ASTM specification which invokes this
specification or portions thereof):
Title of Specification ASTM
DesignationA
Hot-Rolled Carbon Steel Bars:
Steel Bars, Carbon, Quenched and Tempered A 321
Steel Bars and Shapes, Carbon Rolled from “T’’ Rails A 499
Steel Bars, Carbon, Merchant Quality, M-Grades A 575
Steel Bars, Carbon, Hot-Wrought, Special Quality A 576
Steel Bars, Carbon, Merchant Quality, Mechanical
Properties
A 663/A 663M
Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical
Properties
A 675/A 675M
Steel Bars for Springs, Carbon and Alloy A 689
Cold-Finished Carbon Steel Bars:
Steel Bars, Carbon and Alloy, Cold-Finished A 108
Cold-Drawn Stress-Relieved Carbon Steel Bars Subject
to Mechanical Property Requirements
A 311/A 311M
Hot-Rolled Alloy Steel Bars:
Steel Bars, Alloy, Standard Grades A 322
Carbon and Alloy Steel Bars Subject to End-Quench
Hardenability Requirements
A 304
Steel Bars, Alloy, Hot-Wrought or Cold-Finished,
Quenched and Tempered
A 434
Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature
or Pressure-Containing Parts, or Both
A 739
Cold-Finished Alloy Steel Bars:
Steel Bars, Alloy, Hot-Rolled or Cold-Finished,
Quenched and Tempered
A 434
Steel Bars, Carbon, Hot-Wrought or Cold-Finished,
Special Quality, for Pressure Piping Components
A 696
A These designations refer to the latest issue of the respective specifications,
which appear either in the Annual Book of ASTM Standards, Vol 01.05, or as
reprints obtainable from ASTM.
1.2 In case of any conflict in requirements, the requirements
of the purchase order, the individual material specification, and
this general specification shall prevail in the sequence named.
1.3 The values stated in inch-pound units or SI units are to
be regarded as the standard. Within the text, the SI units are
shown in brackets. The values stated in each system are not
exact equivalents; therefore, each system must be used independently
of the other. Combining values from the two systems
may result in nonconformance with the specification.
1.4 For purposes of determining conformance to this specification
and the various material specifications referenced in
1.1, dimensional values shall be rounded to the nearest unit in
the right-hand place of figures used in expressing the limiting
values in accordance with the rounding method of Practice
E 29.
NOTE 1—Specification A 29 previously listed dimensional tolerances
for cold-finished bars; these are now found in Specification A 108.
Referenced Documents
2.1 ASTM Standards: 3
A 108 Specification for Steel Bars, Carbon and Alloy,
Cold-Finished
A 304 Specification for Carbon and Alloy Steel Bars Subject
to End-Quench Hardenability Requirements
A 311/A 311M Specification for Cold-Drawn, Stress-
Relieved Carbon Steel Bars Subject to Mechanical Property
Requirements
A 321 Specification for Steel Bars, Carbon, Quenched and
Tempered
A 322 Specification for Steel Bars, Alloy, Standard Grades
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
A 434 Specification for Steel Bars, Alloy, Hot-Wrought or
Cold-Finished, Quenched and Tempered
A 499 Specification for Steel Bars and Shapes, Carbon
Rolled from “T” Rails
A 575 Specification for Steel Bars, Carbon, Merchant Quality,
M-Grades
A 576 Specification for Steel Bars, Carbon, Hot-Wrought,
Special Quality 1 This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.15 on Bars.
Current edition approved May 1, 2005. Published May 2005. Originally
approved in 1957. Last previous edition approved in 2004 as A 29/A 29M–04e1.
2 For ASME Boiler and Pressure Vessel Code applications see related Specification
SA-29/SA-29M in Section II of that Code.
3 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
Copyright by ASTM Int’l (all rights reserved); Fri Oct 13 09:35:51 EDT 2006
Reproduction authorized per License Agreement with William Hughes (Cab Incorporated);
A 663/A 663M Specification for Steel Bars, Carbon, Merchant
Quality, Mechanical Properties
A 675/A 675M Specification for Steel Bars, Carbon, Hot-
Wrought, Special Quality, Mechanical Properties
A 689 Specification for Carbon and Alloy Steel Bars for
Springs
A 696 Specification for Steel Bars, Carbon, Hot-Wrought or
Cold-Finished, Special Quality for Pressure Piping Components
A 700 Practices for Packaging, Marking, and Loading
Methods for Steel Products for Domestic Shipment
A 739 Specification for Steel Bars, Alloy, Hot-Wrought, for
Elevated Temperature or Pressure-Containing Parts, or
Both
A 751 Test Methods, Practices, and Terminology for
Chemical Analysis of Steel Products
E 29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
E 112 Test Methods for Determining Average Grain Size
2.2 Federal Standards:4
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
Fed. Std. No. 183 Continuous Identification Marking of Iron
and Steel Products
2.3 Military Standard:4
MIL-STD-163 Steel Mill Products—Preparation for Shipment
and Storage
2.4 Other Standards:
AIAG B-1 Bar Code Symbology Standard for 3-of-9 Bar
Codes5
AIAG B-5 02.00 Primary Metals Tag Application Standard5
Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 Hot-Wrought Steel Bars—Steel bars produced by hot
forming ingots, blooms, billets, or other semifinished forms to
yield straight lengths (or coils, depending upon size, section,
and mill equipment) in sections that are uniform throughout
their length, and in the following sections and sizes:
3.1.1.1 Rounds, 7⁄32 to 10.0 in. [5.5 to 250 mm], inclusive,
3.1.1.2 Squares, 7⁄32 to 6.0 in. [6 to 160 mm], inclusive,
3.1.1.3 Round-Cornered Squares, 7⁄32 to 8.0 in. [6 to 200
mm], inclusive,
3.1.1.4 Flats, 1⁄4 to 8 in. inclusive, in width: 13⁄64 in. in
minimum thickness up to 6 in. in width; and 0.230 in. in
minimum thickness for over 6 to 8 in. in width, inclusive [over
5 mm in thickness up to 150 mm in width; and over 6 mm in
thickness for over 150 mm through 200 mm in width].
Maximum thickness for all widths is 4 in. [100 mm].
3.1.1.5 Hexagons and Octagons, 1⁄4 to 41⁄16 in. [6 to 103
mm], inclusive, between parallel surfaces,
3.1.1.6 Bar Size Shapes—Angles, channels, tees, zees,
when their greatest cross-sectional dimension is under 3 in. [75
mm], and
3.1.1.7 Special Bar Sections—Half-rounds, ovals, halfovals,
other special bar size sections.
3.1.2 Cold-Finished Steel Bars—Steel bars produced by
cold finishing previously hot-wrought bars by means of cold
drawing, cold forming, turning, grinding, or polishing (singly
or in combination) to yield straight lengths or coils in sections
that are uniform throughout their length and in the following
sections and sizes:
3.1.2.1 Rounds, 9 in. [230 mm] and under in diameter,
3.1.2.2 Squares, 6 in. [150 mm] and under between parallel
surfaces,
3.1.2.3 Hexagons, 4 in. [100 mm] and under between
parallel surfaces,
3.1.2.4 Flats, 1⁄8 in. [3 mm] and over in thickness and not
over 12 in. [300 mm] in width, and
3.1.2.5 Special Bar Sections.
3.1.3 Lot—Unless otherwise specified in the contract or
order, a lot shall consist of all bars submitted for inspection at
the same time of the same heat, condition, finish, size, or shape.
For bars specified in the quenched and tempered condition,
when heat treated in batch-type furnaces, a lot shall consist of
all bars from the same heat, of the same prior condition, the
same size, and subjected to the same heat treatment in one
tempering charge. For bars specified in the quenched and
tempered condition, when heat treated without interruption in a
continuous-type furnace, a lot shall consist of all bars from the
same heat, of the same prior condition, of the same size, and
subjected to the same heat treatment.
Chemical Composition
4.1 Limits:
4.1.1 The chemical composition shall conform to the requirements
specified in the purchase order or the individual
product specifications. For convenience the grades commonly
specified for carbon steel bars are shown in Tables 1 and 2.
Bars may be ordered to these grade designations and when so
ordered shall conform to the specified limits by heat analysis.
4.1.2 When compositions other than those shown in Tables
1 and 2 are required, the composition limits shall be prepared
using the ranges and limits shown in Table 3 for carbon steel
and Table 4 for alloy steel.
4.2 Heat or Cast Analysis:
4.2.1 The chemical composition of each heat or cast shall be
determined by the manufacturer in accordance with Test
Methods, Practices, and Terminology A 751.
4.2.2 The heat or cast analysis shall conform to the requirements
specified in the product specification or purchase order.
These can be the heat chemical range and limit for a grade
designated in Tables 1 and 2, or another range and limit in
accordance with 4.1.2, or with requirements of the product
specification.
NOTE 2—Heat analysis for lead is not determinable since lead is added
to the ladle stream while each ingot is poured. When specified as an added
element to a standard steel, the percentage of lead is reported as 0.15 to
0.35 incl, which is the range commonly specified for this element.
4 Copies of military specifications, military standards, and federal standards
required by contractors in connection with specific procurement functions should be
obtained from the procuring activity or as directed by the contracting officer, or from
the Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave.,
Philadelphia, PA 19111-5094, Attn: NPODS.
5 Available from Automotive Industry Action Group, North Park Plaza, Ste. 830,
17117 W. Nine Mile Rd., Southfield, MI 48075.
A 29/A 29M – 05
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Reproduction authorized per License Agreement with William Hughes (Cab Incorporated);
TABLE 1 Grade Designations and Chemical Compositions of Carbon Steel Bars
Grade Designation
Heat Chemical Ranges and Limits, %
Carbon Manganese Phosphorus, max Sulfur, maxA
Nonresulfurized Carbon SteelsB,C,D,E,F
1005 0.06 max 0.35 max 0.040 0.050
1006 0.08 max 0.25–0.40 0.040 0.050
1008 0.10 max 0.30–0.50 0.040 0.050
1010 0.08–0.13 0.30–0.60 0.040 0.050
1011 0.08–0.13 0.60–0.90 0.040 0.050
1012 0.10–0.15 0.30–0.60 0.040 0.050
1013 0.11–0.16 0.50–0.80 0.040 0.050
1015 0.13–0.18 0.30–0.60 0.040 0.050
1016 0.13–0.18 0.60–0.90 0.040 0.050
1017 0.15–0.20 0.30–0.60 0.040 0.050
1018 0.15–0.20 0.60–0.90 0.040 0.050
1019 0.15–0.20 0.70–1.00 0.040 0.050
1020 0.18–0.23 0.30–0.60 0.040 0.050
1021 0.18–0.23 0.60–0.90 0.040 0.050
1022 0.18–0.23 0.70–1.00 0.040 0.050
1023 0.20–0.25 0.30–0.60 0.040 0.050
1025 0.22–0.28 0.30–0.60 0.040 0.050
1026 0.22–0.28 0.60–0.90 0.040 0.050
1029 0.25–0.31 0.60–0.90 0.040 0.050
1030 0.28–0.34 0.60–0.90 0.040 0.050
1034 0.32–0.38 0.50–0.80 0.040 0.050
1035 0.32–0.38 0.60–0.90 0.040 0.050
1037 0.32–0.38 0.70–1.00 0.040 0.050
1038 0.35–0.42 0.60–0.90 0.040 0.050
1039 0.37–0.44 0.70–1.00 0.040 0.050
1040 0.37–0.44 0.60–0.90 0.040 0.050
1042 0.40–0.47 0.60–0.90 0.040 0.050
1043 0.40–0.47 0.70–1.00 0.040 0.050
1044 0.43–0.50 0.30–0.60 0.040 0.050
1045 0.43–0.50 0.60–0.90 0.040 0.050
1046 0.43–0.50 0.70–1.00 0.040 0.050
1049 0.46–0.53 0.60–0.90 0.040 0.050
1050 0.48–0.55 0.60–0.90 0.040 0.050
1053 0.48–0.55 0.70–1.00 0.040 0.050
1055 0.50–0.60 0.60–0.90 0.040 0.050
1059 0.55–0.65 0.50–0.80 0.040 0.050
1060 0.55–0.65 0.60–0.90 0.040 0.050
1064 0.60–0.70 0.50–0.80 0.040 0.050
1065 0.60–0.70 0.60–0.90 0.040 0.050
1069 0.65–0.75 0.40–0.70 0.040 0.050
1070 0.65–0.75 0.60–0.90 0.040 0.050
1071 0.65–0.70 0.75–1.05 0.040 0.050
1074 0.70–0.80 0.50–0.80 0.040 0.050
1075 0.70–0.80 0.40–0.70 0.040 0.050
1078 0.72–0.85 0.30–0.60 0.040 0.050
1080 0.75–0.88 0.60–0.90 0.040 0.050
1084 0.80–0.93 0.60–0.90 0.040 0.050
1086 0.80–0.93 0.30–0.50 0.040 0.050
1090 0.85–0.98 0.60–0.90 0.040 0.050
1095 0.90–1.03 0.30–0.50 0.040 0.050
Resulfurized Carbon SteelsB,D,F
1108 0.08–0.13 0.60–0.80 0.040 0.08–0.13
1109 0.08–0.13 0.60–0.90 0.040 0.08–0.13
1110 0.08–0.13 0.30–0.60 0.040 0.08–0.13
1116 0.14–0.20 1.10–1.40 0.040 0.16–0.23
1117 0.14–0.20 1.00–1.30 0.040 0.08–0.13
1118 0.14–0.20 1.30–1.60 0.040 0.08–0.13
1119 0.14–0.20 1.00–1.30 0.040 0.24–0.33
1132 0.27–0.34 1.35–1.65 0.040 0.08–0.13
1137 0.32–0.39 1.35–1.65 0.040 0.08–0.13
1139 0.35–0.43 1.35–1.65 0.040 0.13–0.20
1140 0.37–0.44 0.70–1.00 0.040 0.08–0.13
1141 0.37–0.45 1.35–1.65 0.040 0.08–0.13
1144 0.40–0.48 1.35–1.65 0.040 0.24–0.33
1145 0.42–0.49 0.70–1.00 0.040 0.04–0.07
1146 0.42–0.49 0.70–1.00 0.040 0.08–0.13
1151 0.48–0.55 0.70–1.00 0.040 0.08–0.13
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4.2.3 If requested or required, the heat analysis shall be
reported to the purchaser or his representative.
4.2.4 Reporting of significant figures and rounding shall be
in accordance with Test Methods, Practices, and Terminology
A 751.
4.3 Product Analysis:
4.3.1 Merchant quality carbon bar steel is not subject to
rejection for product analysis unless misapplication of a heat is
clearly indicated.
4.3.2 Analyses may be made by the purchaser from finished
bars other than merchant quality representing each heat of
open-hearth, basic-oxygen, or electric-furnace steel. The
chemical composition thus determined shall not vary from the
limits specified in the applicable specification by more than the
amounts prescribed in Table 5 and Table 6, but the several
determinations of any element, excluding lead, in a heat may
not vary both above and below the specified range. Rimmed or
capped steel is characterized by a lack of homogeneity in its
composition, especially for the elements carbon, phosphorus,
and sulfur; therefore, when rimmed or capped steel is specified
or required, the limitations for these elements shall not be
applicable. Because of the degree to which phosphorus and
sulfur segregate, the limitations for these elements shall not be
applicable to rephosphorized or resulfurized steels.
4.3.3 Samples for product analysis shall be taken by one of
the following methods:
4.3.3.1 Applicable to small sections whose cross-sectional
area does not exceed 0.75 in.2 [500 mm2] such as rounds,
Rephosphorized and Resulfurized Carbon SteelsD,F
Grade Designation Carbon Manganese Phosphorous Sulfur Lead
1211 0.13 max 0.60–0.90 0.07–0.12 0.10–0.15 …
1212 0.13 max 0.70–1.00 0.07–0.12 0.16–0.23 …
1213 0.13 max 0.70–1.00 0.07–0.12 0.24–0.33 …
1215 0.09 max 0.75–1.05 0.04–0.09 0.26–0.35 …
12L13 0.13 max 0.70–1.00 0.07–0.12 0.24–0.33 0.15–0.35
12L14 0.15 max 0.85–1.15 0.04–0.09 0.26–0.35 0.15–0.35
12L15 0.09 max 0.75–1.05 0.04–0.09 0.26–0.35 0.15–0.35
High-Manganese Carbon SteelsB,C,D,E,F
Grade
Designation
Former
Designation Carbon Manganese
Phosphorous,
max
Sulfur,
max
1513 … 0.10–0.16 1.10–1.40 0.040 0.050
1518 … 0.15–0.21 1.10–1.40 0.040 0.050
1522 … 0.18–0.24 1.10–1.40 0.040 0.050
1524 1024 0.19–0.25 1.35–1.65 0.040 0.050
1525 … 0.23–0.29 0.80–1.10 0.040 0.050
1526 … 0.22–0.29 1.10–1.40 0.040 0.050
1527 1027 0.22–0.29 1.20–1.50 0.040 0.050
1536 1036 0.30–0.37 1.20–1.50 0.040 0.050
1541 1041 0.36–0.44 1.35–1.65 0.040 0.050
1547 … 0.43–0.51 1.35–1.65 0.040 0.050
1548 1048 0.44–0.52 1.10–1.40 0.040 0.050
1551 1051 0.45–0.56 0.85–1.15 0.040 0.050
1552 1052 0.47–0.55 1.20–1.50 0.040 0.050
1561 1061 0.55–0.65 0.75–1.05 0.040 0.050
1566 1066 0.60–0.71 0.85–1.15 0.040 0.050
1572 1072 0.65–0.76 1.00–1.30 0.040 0.050
Heat Chemical Ranges and Limits, percent
Merchant Quality M Series Carbon Steel Bars
Grade
Designation Carbon ManganeseG
Phosphorous,
max Sulfur, max
M 1008 0.10 max 0.25–0.60 0.04 0.05
M 1010 0.07–0.14 0.25–0.60 0.04 0.05
M 1012 0.09–0.16 0.25–0.60 0.04 0.05
M 1015 0.12–0.19 0.25–0.60 0.04 0.05
M 1017 0.14–0.21 0.25–0.60 0.04 0.05
M 1020 0.17–0.24 0.25–0.60 0.04 0.05
M 1023 0.19–0.27 0.25–0.60 0.04 0.05
M 1025 0.20–0.30 0.25–0.60 0.04 0.05
M 1031 0.26–0.36 0.25–0.60 0.04 0.05
M 1044 0.40–0.50 0.25–0.60 0.04 0.05
A Maximum unless otherwise indicated.
B When silicon is required, the following ranges and limits are commonly specified: 0.10 %, max, 0.10 % to 0.20 %, 0.15 % to 0.35 %, 0.20 % to 0.40 %, or 0.30 % to
0.60 %.
C Copper can be specified when required as 0.20 % minimum.
D When lead is required as an added element to a standard steel, a range of 0.15 to 0.35 % inclusive is specified. Such a steel is identified by inserting the letter “L”
between the second and third numerals of the grade designation, for example, 10 L 45. A cast or heat analysis is not determinable when lead is added to the ladle stream.
E When boron treatment for killed steels is specified, the steels can be expected to contain 0.0005 to 0.003 % boron. If the usual titanium additive is not permitted, the
steels can be expected to contain up to 0.005 % boron.
F The elements bismuth, calcium, selenium, or tellurium may be added as agreed upon between purchaser and supplier.
G Unless prohibited by the purchaser, the manganese content may exceed 0.60 % on heat analysis to a maximum of 0.75 %, provided the carbon range on heat analysis
has the minimum and maximum reduced by 0.01 % for each 0.05 % manganese over 0.60 %.
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TABLE 2 Grade Designations and Chemical Compositions of Alloy Steel Bars
NOTE 1—Small quantities of certain elements are present in alloy steels, which are not specified or required. These elements are considered as
incidental and may be present to the following maximum amounts: copper, 0.35 %; nickel, 0.25 %; chromium, 0.20 % and molybdenum, 0.06 %.
NOTE 2—Where minimum and maximum sulfur content is shown it is indicative of resulfurized steel.
NOTE 3—The chemical ranges and limits shown in Table 2 are produced to product analysis tolerances shown in Table 6.
NOTE 4—Standard alloy steels can be produced with a lead range of 0.15–0.35 %. Such steels are identified by inserting the letter “L” between the
second and third numerals of the AISI number, for example, 41 L 40. A cast or heat analysis is not determinable when lead is added to the ladle stream.
Grade
Designation
Heat Chemical Ranges and Limits, %
Carbon Manganese Phosphorus,
max
Sulfur,
max
SiliconA Nickel Chromium Molybdenum
1330 0.28–0.33 1.60–1.90 0.035 0.040 0.15 to 0.35 … … …
1335 0.33–0.38 1.60–1.90 0.035 0.040 0.15 to 0.35 … … …
1340 0.38–0.43 1.60–1.90 0.035 0.040 0.15 to 0.35 … … …
1345 0.43–0.48 1.60–1.90 0.035 0.040 0.15 to 0.35
4012 0.09–0.14 0.75–1.00 0.035 0.040 0.15 to 0.35 … … 0.15–0.25
4023 0.20–0.25 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.20–0.30
4024 0.20–0.25 0.70–0.90 0.035 0.035–0.050 0.15 to 0.35 … … 0.20–0.30
4027 0.25–0.30 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.20–0.30
4028 0.25–0.30 0.70–0.90 0.035 0.035–0.050 0.15 to 0.35 … … 0.20–0.30
4032 0.30–0.35 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.20–0.30
4037 0.35–0.40 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.20–0.30
4042 0.40–0.45 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.20–0.30
4047 0.45–0.50 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.20–0.30
4118 0.18–0.23 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.40–0.60 0.08–0.15
4120 0.18–0.23 0.90–1.20 0.035 0.040 0.15 to 0.35 … 0.40–0.60 0.13–0.20
4121 0.18–0.23 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.45–0.65 0.20–0.30
4130 0.28–0.33 0.40–0.60 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4135 0.33–0.38 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4137 0.35–0.40 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4140 0.38–0.43 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4142 0.40–0.45 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4145 0.43–0.48 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4147 0.45–0.50 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4150 0.48–0.53 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.80–1.10 0.15–0.25
4161 0.56–0.64 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.70–0.90 0.25–0.35
4320 0.17–0.22 0.45–0.65 0.035 0.040 0.15 to 0.35 1.65–2.00 0.40–0.60 0.20–0.30
4340 0.38–0.43 0.60–0.80 0.035 0.040 0.15 to 0.35 1.65–2.00 0.70–0.90 0.20–0.30
E4340 0.38–0.43 0.65–0.85 0.025 0.025 0.15 to 0.35 1.65–2.00 0.70–0.90 0.20–0.30
4419 0.18–0.23 0.45–0.65 0.035 0.040 0.15 to 0.35 … … 0.45–0.60
4422 0.20–0.25 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.35–0.45
4427 0.24–0.29 0.70–0.90 0.035 0.040 0.15 to 0.35 … … 0.35–0.45
4615 0.13–0.18 0.45–0.65 0.035 0.040 0.15 to 0.35 1.65–2.00 … 0.20–0.30
4620 0.17–0.22 0.45–0.65 0.035 0.040 0.15 to 0.35 1.65–2.00 … 0.20–0.30
4621 0.18–0.23 0.70–0.90 0.035 0.040 0.15 to 0.35 1.65–2.00 … 0.20–0.30
4626 0.24–0.29 0.45–0.65 0.035 0.040 0.15 to 0.35 0.70–1.00 … 0.15–0.25
4715 0.13–0.18 0.70–0.90 0.035 0.040 0.15 to 0.35 0.70–1.00 0.45–0.65 0.45–0.60
4718 0.16–0.21 0.70–0.90 0.035 0.040 0.15 to 0.35 0.90–1.20 0.35–0.55 0.30–0.40
4720 0.17–0.22 0.50–0.70 0.035 0.040 0.15 to 0.35 0.90–1.20 0.35–0.55 0.15–0.25
4815 0.13–0.18 0.40–0.60 0.035 0.040 0.15 to 0.35 3.25–3.75 … 0.20–0.30
4817 0.15–0.20 0.40–0.60 0.035 0.040 0.15 to 0.35 3.25–3.75 … 0.20–0.30
4820 0.18–0.23 0.50–0.70 0.035 0.040 0.15 to 0.35 3.25–3.75 … 0.20–0.30
5015 0.12–0.17 0.30–0.50 0.035 0.040 0.15 to 0.35 … 0.30–0.50 …
5046 0.43–0.48 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.20–0.35 …
5115 0.13–0.18 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.70–0.90 …
5120 0.17–0.22 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.70–0.90 …
5130 0.28–0.33 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.80–1.10 …
5132 0.30–0.35 0.60–0.80 0.035 0.040 0.15 to 0.35 … 0.75–1.00 …
5135 0.33–0.38 0.60–0.80 0.035 0.040 0.15 to 0.35 … 0.80–1.05 …
5140 0.38–0.43 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.70–0.90 …
5145 0.43–0.48 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.70–0.90 …
5147 0.46–0.51 0.70–0.95 0.035 0.040 0.15 to 0.35 … 0.85–1.15 …
5150 0.48–0.53 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.70–0.90 …
5155 0.51–0.59 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.70–0.90 …
5160 0.56–0.61 0.75–1.00 0.035 0.040 0.15 to 0.35 … 0.70–0.90 …
E50100 0.98–1.10 0.25–0.45 0.025 0.025 0.15 to 0.35 … 0.40–0.60 …
E51100 0.98–1.10 0.25–0.45 0.025 0.025 0.15 to 0.35 … 0.90–1.15 …
E52100 0.98–1.10 0.25–0.45 0.025 0.025 0.15 to 0.35 … 1.30–1.60 …
52100B 0.93–1.05 0.25–0.45 0.025 0.015 0.15 to 0.35 … 1.35–1.60 …
6118 0.16–0.21 0.50–0.70 0.035 0.040 0.15 to 0.35 … 0.50–0.70 (0.10–0.15 V)
6150 0.48–0.53 0.70–0.90 0.035 0.040 0.15 to 0.35 … 0.80–1.10 (0.15 min V)
8115 0.13–0.18 0.70–0.90 0.035 0.040 0.15 to 0.35 0.20–0.40 0.30–0.50 0.08–0.15
8615 0.13–0.18 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
A 29/A 29M – 05
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Reproduction authorized per License Agreement with William Hughes (Cab Incorporated);
squares, hexagons, and the like. Chips are taken by milling or
machining the full cross section of the piece. Drilling is not a
feasible method for sampling sizes 0.75 in.2 and smaller.
4.3.3.2 Applicable to products where the width of the cross
section greatly exceeds the thickness, such as bar size shapes
and light flat bars. Chips are taken by drilling entirely through
the steel at a point midway between the edge and the middle of
the section, or by milling or machining the entire cross section.
4.3.3.3 Applicable to large rounds, squares semifinished,
etc. Chips are taken at any point midway between the outside
and the center of the piece by drilling parallel to the axis or by
milling or machining the full cross section. In cases where
these methods are not practicable, the piece may be drilled on
the side, but chips are not taken until they represent the portion
midway between the outside and the center.
4.3.3.4 When the steel is subject to tension test requirements,
the tension test specimen can also be used for product
analysis. In that case, chips for product analysis can be taken
by drilling entirely through the tension test specimens or by the
method described in 4.3.3.1.
4.3.4 When chips are taken by drilling, the diameter of the
drill used shall conform to the following:
Area of Sample Cross Section,
in.2(cm2)
Approximate Drill Diameter,
in. (mm)
16 [100] or less 1⁄2 [12.5]
Over 16 [100] 1 [25.0]
4.3.5 The minimum number of samples to be taken from
material representing the same heat or lot before rejection by
the purchaser shall be as follows:
Minimum Number of Samples
15 tons [15 Mg] and under 4
Over 15 tons [15 Mg] 6
4.3.6 In case the number of pieces in a heat is less than the
number of samples required, one sample from each piece shall
be considered sufficient.
4.3.7 In the event that product analysis determinations are
outside the permissible limits as prescribed in 4.3.2, additional
samples shall be analyzed and the acceptability of the heat
negotiated between the purchaser and the producer.
4.4 Referee Analysis—In case a referee analysis is required
and agreed upon to resolve a dispute concerning the results of
a chemical analysis, the referee analysis shall be performed in
accordance with the latest issue of Test Methods, Practices, and
Terminology A 751, unless otherwise agreed upon between the
manufacturer and the purchaser.
TABLE 2 Continued
Grade
Designation
Heat Chemical Ranges and Limits, %
Carbon Manganese Phosphorus,
max
Sulfur,
max
SiliconA Nickel Chromium Molybdenum
8617 0.15–0.20 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8620 0.18–0.23 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8622 0.20–0.25 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8625 0.23–0.28 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8627 0.25–0.30 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8630 0.28–0.33 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8637 0.35–0.40 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8640 0.38–0.43 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8642 0.40–0.45 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8645 0.43–0.48 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8650 0.48–0.53 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8655 0.51–0.59 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8660 0.56–0.64 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.15–0.25
8720 0.18–0.23 0.70–0.90 0.035 0.040 0.15 to 0.35 0.40–0.7 0.40–0.60 0.20–0.30
8740 0.38–0.43 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.20–0.30
8822 0.20–0.25 0.75–1.00 0.035 0.040 0.15 to 0.35 0.40–0.70 0.40–0.60 0.30–0.40
9254 0.51–0.59 0.60–0.80 0.035 0.040 1.20–1.60 … 0.60–0.80 …
9255 0.51–0.59 0.70–0.95 0.035 0.040 1.80–2.20 … … …
9259 0.56–0.64 0.75–1.00 0.035 0.040 0.70–1.10 . . . 0.45–0.65 . . .
9260 0.56–0.64 0.75–1.00 0.035 0.040 1.80–2.20 … … …
E9310 0.08–0.13 0.45–0.65 0.025 0.025 0.15 to 0.30 3.00–3.50 1.00–1.40 0.08–0.15
Standard Boron SteelsC
50B44 0.43–0.48 0.75–1.00 0.035 0.040 0.15–0.35 . . . 0.20–0.60 . . .
50B46 0.44–0.49 0.75–1.00 0.035 0.040 0.15–0.35 . . . 0.20–0.35 . . .
50B50 0.48–0.53 0.75–1.00 0.035 0.040 0.15–0.35 . . . 0.40–0.60 . . .
50B60 0.56–0.64 0.75–1.00 0.035 0.040 0.15–0.35 . . . 0.40–0.60 . . .
51B60 0.56–0.64 0.75–1.00 0.035 0.040 0.15–0.35 . . . 0.70–0.90 . . .
81B45 0.43–0.48 0.75–1.00 0.035 0.040 0.15–0.35 0.20–0.40 0.35–0.55 0.08–0.15
94B17 0.15–0.20 0.75–1.00 0.035 0.040 0.15–0.35 0.30–0.60 0.30–0.50 0.80–0.15
94B30 0.28–0.33 0.75–1.00 0.035 0.040 0.15–0.35 0.30–0.60 0.30–0.50 0.08–0.15
A Silicon may be specified by the purchaser as 0.10 % maximum. The need for 0.10% maximum generally relates to severe cold-formed parts.
B The purchaser may also require the following maximums: copper 0.30 %; aluminum 0.050 %; oxygen 0.0015 %.
C These steels can be expected to contain 0.0005 to 0.003 % boron. If the usual titanium additive is not permitted, the steels can be expected to contain up to 0.005 %
boron.
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Grain Size Requirement
5.1 Austenitic Grain Size:
5.1.1 When a coarse austenitic grain size is specified, the
steel shall have a grain size number of 1 to 5 exclusive as
determined in accordance with Test Methods E 112. Conformance
to this grain size of 70 % of the grains in the area
examined shall constitute the basis of acceptance. One test per
heat shall be made.
5.1.2 When a fine austenitic grain size is specified, the steel
shall have a grain size number of 5 or higher as determined in
accordance with Test Methods E 112. Conformance to this
grain size of 70 % of the area examined shall constitute the
basis of acceptance. One test per heat shall be made unless the
provisions of 5.1.2.1 or 5.1.2.2 are exercised.
5.1.2.1 When aluminum is used as the grain refining element,
the fine austenitic grain size requirement shall be deemed
to be fulfilled if, on heat analysis, the aluminum content is not
less than 0.020 % total aluminum or, alternately, 0.015 % acid
soluble aluminum. The aluminum content shall be reported.
The grain size test specified in 5.1.2 shall be the referee test.
5.1.2.2 By agreement between purchaser and supplier,
columbium or vanadium or both may be used for grain refining
instead of or with aluminum. When columbium or vanadium is
used as a grain refining element, the fine austenitic grain size
requirement shall be deemed to be fulfilled if, on heat analysis,
the columbium or vanadium content is as follows (the content
of the elements shall be reported with the heat analysis):
Steels having 0.25 % carbon or less:
Cb 0.025 min
V 0.05 min
Steels having over 0.25 % carbon:
Cb 0.015 min
V 0.02 min
The maximum contents shall be:
Cb 0.05 max
V 0.08 max
Cb + V 0.06 max
5.1.2.3 When provisions of 5.1.2.1 or 5.1.2.2 are exercised,
a grain size test is not required unless specified by the
purchaser. Unless otherwise specified, fine austenitic grain size
shall be certified using the analysis of grain refining element(s).
5.1.2.4 Referee Test—In the event that the chemical analysis
of columbium or vanadium does not meet the requirements of
5.1.2.2, the grain size test shown in 5.1.2 shall be the referee
test unless an alternative test method is agreed upon between
the manufacturer and the purchaser.
TABLE 3 Heat Analysis Chemical Ranges and Limits of Carbon
Steel Bars
Element
Chemical Ranges and Limits, %
When Maximum of Specified
Elements is:
Range Lowest
Maximum
CarbonA … … 0.06
to 0.12, incl … …
over 0.12 to 0.25, incl 0.05 …
over 0.25 to 0.40, incl 0.06 …
over 0.40 to 0.55, incl 0.07 …
over 0.55 to 0.80, incl 0.10 …
over 0.80 0.13 …
Manganese … … 0.35
to 0.40, incl 0.15 …
over 0.40 to 0.50, incl 0.20 …
over 0.50 to 1.65, incl 0.30 …
Phosphorus to 0.040, incl … 0.040B
over 0.040 to 0.08, incl 0.03 …
over 0.08 to 0.13, incl 0.05 …
Sulfur to 0.050, incl … 0.050B
over 0.050 to 0.09, incl 0.03 …
over 0.09 to 0.15, incl 0.05 …
over 0.15 to 0.23, incl 0.07 …
over 0.23 to 0.50, incl 0.09 …
SiliconC … … 0.10
to 0.10, incl … …
over 0.10 to 0.15, incl 0.08 …
over 0.15 to 0.20, incl 0.10 …
over 0.20 to 0.30, incl 0.15 …
over 0.30 to 0.60, incl 0.20 …
Copper When copper is required 0.20
min is generally used
LeadD When lead is required, a range
of 0.15 to 0.35 is specified
BismuthE
CalciumE
SeleniumE
TelluriumE
A The carbon ranges shown in the column headed “Range” apply when the
specified maximum limit for manganese does not exceed 1.10 %. When the
maximum manganese limit exceeds 1.10 %, add 0.01 to the carbon ranges shown
above.
B For steels produced in merchant quality the phosphorus maximum is 0.04 %
and the sulfur maximum is 0.05 %.
C It is not common practice to produce a rephosphorized and resulfurized
carbon steel to specified limits for silicon because of its adverse effect on
machinability.
D A cast or heat analysis is not determinable when lead is added to the ladle
stream.
E Element specification range as agreed upon between purchaser and supplier.
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TABLE 4 Heat Analysis Chemical Ranges and Limits of Alloy Steel Bars
NOTE 1—Boron steels can be expected to have 0.0005 % minimum boron content.
NOTE 2—Alloy steels can be produced with a lead range of 0.15–0.35 %. A cast or heat analysis is not determinable when lead is added to the ladle
stream.
Element
Chemical Ranges and Limits, %
When Maximum of Specified Element
is:
Open-Hearth or Basic-Oxygen
Steel
Electric Furnace Steel Maximum Limit, %A
Carbon To 0.55, incl 0.05 0.05
Over 0.55–0.70, incl 0.08 0.07
Over 0.70 to 0.80, incl 0.10 0.09
Over 0.80–0.95, incl 0.12 0.11
Over 0.95–1.35, incl 0.13 0.12
Manganese To 0.60, incl 0.20 0.15
Over 0.60–0.90, incl 0.20 0.20
Over 0.90–1.05, incl 0.25 0.25
Over 1.05–1.90, incl 0.30 0.30
Over 1.90–2.10, incl 0.40 0.35
Phosphorus Basic open-hearth or basicoxygen
steel 0.035
Acid open-hearth steel 0.050
Basic electric-furnace steel 0.025
Acid electric-furnace steel 0.050
Sulfur To 0.050, incl 0.015 0.015
Over 0.050–0.07, incl 0.02 0.02
Over 0.07–0.10, incl 0.04 0.04
Over 0.10–0.14, incl 0.05 0.05
Basic open-hearth or basicoxygen
steel 0.040
Acid open-hearth steel 0.050
Basic electric-furnace steel 0.025
Acid electric-furnace steel 0.050
Silicon To 0.20, incl 0.08 0.08
Over 0.20–0.30, incl 0.15 0.15
Over 0.30–0.60, incl 0.20 0.20
Over 0.60–1.00, incl 0.30 0.30
Over 1.00–2.20, incl 0.40 0.35
Acid steelsB
Nickel To 0.50, incl 0.20 0.20
Over 0.50–1.50, incl 0.30 0.30
Over 1.50–2.00, incl 0.35 0.35
Over 2.00–3.00, incl 0.40 0.40
Over 3.00–5.30, incl 0.50 0.50
Over 5.30–10.00, incl 1.00 1.00
Chromium To 0.40, incl 0.15 0.15
Over 0.40–0.90, incl 0.20 0.20
Over 0.90–1.05, incl 0.25 0.25
Over 1.05–1.60, incl 0.30 0.30
Over 1.60–1.75, incl C 0.35
Over 1.75–2.10, incl C 0.40
Over 2.10–3.99, incl C 0.50
Molybdenum To 0.10, incl 0.05 0.05
Over 0.10–0.20, incl 0.07 0.07
Over 0.20–0.50, incl 0.10 0.10
Over 0.50–0.80, incl 0.15 0.15
Over 0.80–1.15, incl 0.20 0.20
Tungsten To 0.50, incl 0.20 0.20
Over 0.50–1.00, incl 0.30 0.30
Over 1.00–2.00, incl 0.50 0.50
Over 2.00–4.00, incl 0.60 0.60
Vanadium To 0.25, incl 0.05 0.05
Over 0.25–0.50, incl 0.10 0.10
Aluminum Up to 0.10, incl 0.05 0.05
Over 0.10–0.20, incl 0.10 0.10
Over 0.20–0.30, incl 0.15 0.15
Over 0.30–0.80, incl 0.25 0.25
Over 0.80–1.30, incl 0.35 0.35
Over 1.30–1.80, incl 0.45 0.45
Copper To 0.60, incl 0.20 0.20
Over 0.60–1.50, incl 0.30 0.30
Over 1.50–2.00, incl 0.35 0.35
A Applies to only nonrephosphorized and nonresulfurized steels.
B Minimum silicon limit for acid open-hearth or acid electric-furnace alloy steels is 0.15 %.
C Not normally produced in open-hearth.
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Mechanical Property Requirements
6.1 Test Specimens:
6.1.1 Selection—Test specimens shall be selected in accordance
with the requirements of the applicable product specification
or in accordance with Supplement I of the latest issue of
Test Methods and Definitions A 370, in the sequence named.
6.1.2 Preparation—Unless otherwise specified in the applicable
product specification, test specimens shall be prepared in
accordance with the latest issue of Test Methods and Definitions
A 370, and especially Supplement I thereof.
6.2 Methods of Mechanical Testing—All mechanical tests
shall be conducted in accordance with the latest issue of Test
Methods and Definitions A 370, and especially Supplement I
thereof, on steel bar products.
6.3 Retests:
6.3.1 If any test specimen shows defective machining or
develops flaws, the specimen may be discarded and another
substituted.
6.3.2 If the percentage elongation of any tension specimen
is less than that specified and any part of the fracture is more
than 3⁄4 in. [20 mm] from the center of a 2-in. [50-mm]
specimen, or is outside the middle half of the gage length of an
8-in. [200-mm] specimen as indicated by scribe scratches
marked on the specimen before testing, a retest shall be
allowed.
6.3.3 For “as-wrought” material, if the results for any
original tension specimen are within 2000 psi [14 MPa] of the
required tensile strength, within 1000 psi [7 MPa] of the
required yield point, or within 2 % of the required elongation,
retesting shall be permitted. If the original testing required only
one test, the retest shall consist of two random tests from the
heat or lot involved. If the original testing required two tests of
which one failed by the amounts listed in this paragraph, the
retest shall be made on one random test from the heat or lot. If
the results on the retest specimen or specimens meet the
specified requirements, the heat or test lot will be accepted. If
the results of one retest specimen do not meet the specified
requirements, the material is subject to rejection.
6.3.4 For thermally treated bars, if the results of the mechanical
tests do not conform to the requirements specified,
two more tests may be selected for each bar failing, and each
of these retests shall conform to the requirements of the
product specification.
6.3.5 If a bend specimen fails, due to conditions of bending
more severe than required by the specification, a retest shall be
permitted from the heat or test lot involved for which one
random specimen for each original specimen showing failure
shall be used. If the results on the retest specimen meet the
requirements of the specification, the heat or test lot will be
accepted.
Dimensions, Mass, and Permissible Variations
7.1 Hot-Wrought Bars—The permissible variations for dimensions
of hot-wrought carbon and alloy steel bars shall not
exceed the applicable limits stated in Annex A1 for inch-pound
values and Annex A2 for metric values.
Workmanship, Finish, and Appearance
8.1 The material shall be free of injurious defects and shall
have a workmanlike finish.
TABLE 5 Permissible Variations for Product Analysis of Carbon
Steel
Element
Limit, or Maximum of
Specified Range, %
Over
Maximum
Limit, %
Under
Minimum
Limit, %
CarbonA 0.25 and under 0.02 0.02
over 0.25 to 0.55, incl 0.03 0.03
over 0.55 0.04 0.04
Manganese 0.90 and under 0.03 0.03
over 0.90 to 1.65, incl 0.06 0.06
PhosphorusA,B basic steels 0.008 …
acid bessemer steel 0.01 0.01
SulfurA,B 0.008 …
Silicon 0.35 and under 0.02 0.02
over 0.35 to 0.60, incl 0.05 0.05
Copper under minimum only … 0.02
LeadC 0.15 to 0.35, incl 0.03 0.03
A Rimmed and capped steels are not subject to rejection on product analysis
unless misapplication is clearly indicated.
B Resulfurized or rephosphorized steels are not subject to rejection on product
analysis for these elements unless misapplication is clearly indicated.
C Product analysis tolerance for lead applies both over and under to a specified
range of 0.15 to 0.35 %.
TABLE 6 Permissible Variations for Product Analysis of Alloy
Steel
Elements
Limit, or Maximum of
Specified Range, %
Permissible Variations
Over Maximum Limit or
Under Minimum Limit, %
Carbon 0.30 and under 0.01
over 0.30 to 0.75, incl 0.02
over 0.75 0.03
Manganese 0.90 and under 0.03
over 0.90 to 2.10, incl 0.04
Phosphorus over maximum only 0.005
Sulfur 0.060 and under 0.005
Silicon 0.40 and under 0.02
over 0.40 to 2.20, incl 0.05
Nickel 1.00 and under 0.03
over 1.00 to 2.00, incl 0.05
over 2.00 to 5.30, incl 0.07
over 5.30 to 10.00, incl 0.10
Chromium 0.90 and under 0.03
over 0.90 to 2.10, incl 0.05
over 2.10 to 3.99, incl 0.10
Molybdenum 0.20 and under 0.01
over 0.20 to 0.40, incl 0.02
over 0.40 to 1.15, incl 0.03
Vanadium 0.10 and under 0.01
over 0.10 to 0.25, incl 0.02
over 0.25 to 0.50, incl 0.03
minimum value specified,
under minimum limit
only
0.01
Tungsten 1.00 and under 0.04
over 1.00 to 4.00, incl 0.08
Aluminum 0.10 and under 0.03
over 0.10 to 0.20, incl 0.04
over 0.20 to 0.30, incl 0.05
over 0.30 to 0.80, incl 0.07
over 0.80 to 1.80, incl 0.10
LeadA 0.15 to 0.35, incl 0.03
Copper to 1.00 incl 0.03
over 1.00 to 2.00, incl 0.05
A Product analysis tolerance for lead applies both over and under to a specified
range of 0.15 to 0.35 %.
A 29/A 29M – 05
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Rework and Retreatment
9.1 For thermally treated bars only, the manufacturer may
retreat a lot one or more times, and retests shall be made in the
same manner as the original tests. Each such retest shall
conform to the requirements specified.
Inspection
10.1 The inspector representing the purchaser shall have
entry, at all times while work on the contract of the purchaser
is being performed, to all parts of the manufacturer’s works
that concern the manufacture of the material ordered. The
manufacturer shall afford the inspector all reasonable facilities
to satisfy him that the material is being furnished in accordance
with this specification. All tests (except product analysis) and
inspection shall be made at the place of manufacture prior to
shipment, unless otherwise specified, and shall be so conducted
as not to interfere unnecessarily with the operation of the
works.
10.2 All required tests and inspection shall be made by the
manufacturer prior to shipment.
Rejection
11.1 Unless otherwise specified, any rejection because of
noncompliance to the requirements of the specification shall be
reported by the purchaser to the manufacturer within 30
working days after receipt of samples.
11.2 Material that shows imperfections capable of adversely
affecting processibility subsequent to its acceptance at the
purchaser’s works will be rejected, and the manufacturer shall
be notified.
Rehearing
12.1 Samples that represent rejected material shall be preserved
for two weeks from the date rejection is reported to the
manufacturer. In case of dissatisfaction with the results of the
tests, the manufacturer may make claim for a rehearing within
that time.
Product Marking
13.1 Civilian Procurement—Bars of all sizes, when loaded
for shipment, shall be properly identified with the name or
brand of manufacturer, purchaser’s name and order number,
the ASTM designation (year date is not required), grade
number where appropriate, size and length, weight of lift, and
the heat number for identification. Unless otherwise specified,
the method of marking is at the manufacturer’s option and may
be made by hot stamping, cold stamping, painting, or marking
tags attached to the lifts of bars.
13.1.1 Bar code marking may be used as an auxiliary
method of identification. Such bar-code markings shall be of
the 3-of-9 type and shall conform to AIAG B1. When barcoded
tags are used, they shall conform to AIAG B5.
13.2 Government Procurement:
13.2.1 Marking for shipment shall be in accordance with the
requirements specified in the contract or order and shall be in
accordance with MIL-STD-163 for military agencies and in
accordance with Fed. Std. No. 123 for civil agencies.
13.2.2 For government procurement by the Defense Supply
Agency, the bars shall be continuously marked for identification
in accordance with Fed. Std. No. 183.
Packaging
14.1 Civilian Procurement—Unless otherwise specified, the
bars shall be packaged and loaded in accordance with Practices
A 700.
14.2 Government Procurement—MIL-STD-163 shall apply
when packaging is specified in the contract or order, or when
Level A for preservation, packaging, and packing is specified
for direct procurement by or direct shipment to the government.
Keywords
15.1 alloy steel bars; carbon steel bars; cold finished steel
bars; general delivery requirements; hot wrought steel bars;
steel bars
SUPPLEMENTARY REQUIREMENTS
The following supplementary requirements shall apply only when specified by the purchaser in the
contract or order.
S1. Flat Bar Thickness Tolerances
S1.1 When flat bars are specified in metric units to a
thickness under tolerance of 0.3 mm, the thickness tolerance of
Table S1.1 shall apply.
A 29/A 29M – 05
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ANNEXES
(Mandatory Information)
A1. PERMISSIBLE VARIATIONS IN DIMENSIONS, ETC.—INCH-POUND UNITS
A1.1 Listed below are permissible variations in dimensions
expressed in inch-pound units of measurement.
TABLE S1.1 Thickness and Width Tolerances for Hot-Wrought Square-Edge and Round-Edge Flat Bars Ordered to 0.3 mm Under
ToleranceA
NOTE—Tolerance under specified thickness 0.3 mm.
Specified Width, mm
Tolerances over Specified Thickness for Thickness Given, mm Tolerance from Specified Width, mm
Over 6 to 12, incl Over 12 to 25, incl Over 25 to 50, incl Over 50 to 75, incl Over 75 Over Under
To 25, incl . . . . . . . . . . . . . . . 0.5 0.5
Over 25 to 50, incl . . . 0.5 1.3 . . . . . . 1.0 1.0
Over 50 to 100, incl 0.5 0.7 1.3 2.1 2.1 1.5 1.0
Over 100 to 150, incl 0.5 0.7 1.3 2.1 2.1 2.5 1.5
Over 150 to 200, incl 0.5 1.0 1.3 2.1 2.9 3.0 2.5
A When a square is held against a face and an edge of a square-edge flat bar, the edge shall not deviate by more than 3° or 5 % of the thickness.
TABLE A1.1 Permissible Variations in Cross Section for Hot-
Wrought Round, Square, and Round-Cornered Square Bars of
Steel
Specified Size, in.
Permissible Variation
from Specified Size, in.A
Out-of-Round or
Over Under Out-of-Square, in.B
To 5⁄16 , incl 0.005 0.005 0.008
Over 5⁄16 to 7⁄16 , incl 0.006 0.006 0.009
Over 7⁄16 to 5⁄8 , incl 0.007 0.007 0.010
Over 5⁄8 to 7⁄8 , incl 0.008 0.008 0.012
Over 7⁄8 to 1, incl 0.009 0.009 0.013
Over 1 to 11⁄8 , incl 0.010 0.010 0.015
Over 11⁄8 to 11⁄4 , incl 0.011 0.011 0.016
Over 11⁄4 to 13⁄8 , incl 0.012 0.012 0.018
Over 13⁄8 to 11⁄2 , incl 0.014 0.014 0.021
Over 11⁄2 to 2, incl 1⁄64 1⁄64 0.023
Over 2 to 21⁄2 , incl 1⁄32 0 0.023
Over 21⁄2 to 31⁄2 , incl 3⁄64 0 0.035
Over 31⁄2 to 41⁄2 , incl 1⁄16 0 0.046
Over 41⁄2 to 51⁄2 , incl 5⁄64 0 0.058
Over 51⁄2 to 61⁄2 , incl 1⁄8 0 0.070
Over 61⁄2 to 81⁄4 , incl 5⁄32 0 0.085
Over 81⁄4 to 91⁄2 , incl 3⁄16 0 0.100
Over 91⁄2 to 10, incl 1⁄4 0 0.120
A Steel bars are regularly cut to length by shearing or hot sawing, which can
cause end distortion resulting in those portions of the bar being outside the
applicable size tolerance. When this end condition is objectionable, a machine cut
end should be considered.
B Out-of-round is the difference between the maximum and minimum diameters
of the bar, measured at the same cross section. Out-of-square is the difference in
the two dimensions at the same cross section of a square bar between opposite
faces.
A 29/A 29M – 05
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TABLE A1.2 Permissible Variations in Cross Section for Hot-
Wrought Hexagonal Bars of Steel
Specified Sizes Between
Opposite Sides, in.
Permissible Variations
from Specified Size, in.A
Out-of-Hexagon
(Carbon Steel and
Alloy Steel) or Outof-
Octagon (Alloy
Over Under Steel), in.B
To 1⁄2 , incl 0.007 0.007 0.011
Over 1⁄2 to 1, incl 0.010 0.010 0.015
Over 1 to 11⁄2 , incl 0.021 0.013 0.025
Over 11⁄2 to 2, incl 1⁄32 1⁄64 1⁄32
Over 2 to 21⁄2 , incl 3⁄64 1⁄64 3⁄64
Over 21⁄2 to 31⁄2 , incl 1⁄16 1⁄64 1⁄16
Over 31⁄2 to 41⁄16 , incl 5⁄64 1⁄64 5⁄64
A Steel bars are regularly cut to length by shearing or hot sawing, which can
cause end distortion resulting in those portions of the bar being outside the
applicable size tolerance. When this end condition is objectionable, a machine cut
end should be considered.
B Out-of-hexagon or out-of-octagon is the greatest difference between any two
dimensions at the same cross section between opposite faces.
TABLE A1.3 Permissible Variations in Thickness and Width for Hot-Wrought Square Edge and Round Edge Flat BarsA
Specified
Width, in.
Permissible Variations in Thickness, for Thickness Given, Over and Under, in.B Permissible Variations in Width, in.
0.203 to 0.230,
excl
0.230 to 1⁄4 ,
excl
1⁄4 to 1⁄2 ,
incl
Over 1⁄2 to
1, incl
Over 1 to 2,
incl
Over 2 to 3,
incl
Over 3 Over Under
To 1, incl 0.007 0.007 0.008 0.010 … … … 1⁄64 1⁄64
Over 1 to 2, incl 0.007 0.007 0.012 0.015 1⁄32 … … 1⁄32 1⁄32
Over 2 to 4, incl 0.008 0.008 0.015 0.020 1⁄32 3⁄64 3⁄64 1⁄16 1⁄32
Over 4 to 6, incl 0.009 0.009 0.015 0.020 1⁄32 3⁄64 3⁄64 3⁄32 1⁄16
Over 6 to 8, incl C 0.015 0.016 0.025 1⁄32 3⁄64 1⁄16 1⁄8 3⁄32
A When a square is held against a face and an edge of a square edge flat bar, the edge shall not deviate by more than 3° or 5 % of the thickness.
B Steel bars are regularly cut to length by shearing or hot sawing, which can cause end distortion resulting in those portions of the bar being outside the applicable size
tolerance. When this end condition is objectionable, a machine cut end should be considered.
C Flats over 6 to 8 in., incl, in width, are not available as hot-wrought steel bars in thickness under 0.230 in.
TABLE A1.4 Permissible Variations in Thickness, Length, and
Out-of-Square for Hot-Wrought Bar Size Angles of Carbon Steel
Specified Length of
Leg, in.A
Permissible Variations in Thickness, for
Thicknesses Given,
Over and Under, in.
Permissible
Variations for
Length of Leg,
Over and Under,
in.
To 3⁄16 ,
incl
Over 3⁄16 to 3⁄8 ,
incl
Over 3⁄8
To 1, incl 0.008 0.010 … 1⁄32
Over 1 to 2, incl 0.010 0.010 0.012 3⁄64
Over 2 to 3, excl 0.012 0.015 0.015 1⁄16
A The longer leg of an unequal angle determines the size for tolerance. The
out-of-square tolerance in either direction is 11⁄2 °.
TABLE A1.5 Permissible Variations in Dimensions for Hot-
Wrought Bar Size Channels of Carbon Steel
Specified
Size of
Channel, in.
Permissible Variations in Size, Over and Under, in. Out-of-
SquareAif
Either
Flange, in./in.
of Flange
Width
Depth of
SectionB
Width of
FlangesB
Thickness of Web for
Thickness Given
To 3⁄16 , incl Over 3⁄16
To 11⁄2 , incl 1⁄32 1⁄32 0.010 0.015 1⁄32
Over 11⁄2 to
3, excl
1⁄16 1⁄16 0.015 0.020 1⁄32
A For channels 5⁄8 in. and under in depth, the out-of-square tolerance is 3⁄64
in./in. of depth.
B Measurements for depth of section and width of flanges are overall.
A 29/A 29M – 05
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TABLE A1.6 Permissible Variations in Dimensions for Hot-Wrought Bar Size Tees of Carbon Steel
Specified Size of
Tee, in.A
Permissible Variations in Size, in.
Width or DepthB Thickness of Flange Thickness of Stem Stem out-of-
Over Under Over Under Over Under SquareC
To 11⁄4 , incl 3⁄64 3⁄64 0.010 0.010 0.005 0.020 1⁄32
Over 11⁄4 to 2, incl 1⁄16 1⁄16 0.012 0.012 0.010 0.020 1⁄16
Over 2 to 3, excl 3⁄32 3⁄32 0.015 0.015 0.015 0.020 3⁄32
A The longer member of the unequal tee determines the size for tolerances.
B Measurements for both width and depth are overall.
C Stem out-of-square is the variation from its true position of the center line of the stem measured at the point.
TABLE A1.7 Permissible Variations in Dimensions for Half-
Rounds, Ovals, Half-Ovals, and Other Special Bar Size Sections
Due to mill facilities, tolerances on half-rounds, ovals, half-ovals, and other
special bar size sections vary among the manufacturers and such tolerances
should be negotiated between the manufacturer and the purchaser.
TABLE A1.8 Permissible Variations in Length for Hot-Wrought Rounds, Squares, Hexagons, Flats, and Bar Size Sections of Steel
Specified Size of
Rounds, Squares,
and Hexagons, in.
Specified Size of Flats, in. Permissible Variations Over Specified Length, in.A
Thickness Width 5 to 10 ft, excl 10 to 20 ft, excl 20 to 30 ft, excl 30 to 40 ft, excl 40 to 60 ft, excl
Mill Shearing
To 1, incl to 1, incl to 3, incl 1⁄2 3⁄4 11⁄4 13⁄4 21⁄4
Over 1 to 2, incl over 1 to 3, incl 5⁄8 1 11⁄2 2 21⁄2
to 1, incl over 3 to 6, incl 5⁄8 1 11⁄2 2 21⁄2
Over 2 to 5, incl over 1 over 3 to 6, incl 1 11⁄2 13⁄4 21⁄4 23⁄4
Over 5 to 10, incl … … 2 21⁄2 23⁄4 3 31⁄4
0.230 to 1, incl over 6 to 8, incl 3⁄4 11⁄4 13⁄4 31⁄2 4
over 1 to 3, incl over 6 to 8, incl 11⁄4 13⁄4 2 31⁄2 4
Bar Size Sections … … 5⁄8 1 11⁄2 2 21⁄2
Hot Sawing
2 to 31⁄2 , incl 1 and over 3 and over B 11⁄2 13⁄4 21⁄4 23⁄4
Over 31⁄2 to 5, incl 2 21⁄4 25⁄8 3
Over 5 to 10, incl … … B 21⁄2 23⁄4 3 31⁄4
A No permissible variations under.
B Smaller sizes and shorter lengths are not hot sawed.
TABLE A1.9 Permissible Variations in Length for Recutting of
Bars Meeting Special Straightness Tolerances
Sizes of Rounds, Squares,
Hexagons, Width of Flats and
Maximum Dimension of Other
Sections, in.A
Tolerances Over Specified Length,
in.A
To 12 ft, incl Over 12 ft
To 3, incl 1⁄4 5⁄16
Over 3 to 6, incl 5⁄16 7⁄16
Over 6 to 8, incl 7⁄16 9⁄16
Rounds over 8 to 10, incl. 9⁄16 11⁄16
A No tolerance under.
TABLE A1.10 Permissible Variations in Straightness for Hot-
Wrought Bars and Bar Size Sections of SteelA
Standard tolerances 1⁄4 in. in any 5 ft and (1⁄4 in. 3 length in ft)/5
Special tolerances 1⁄8 in. in any 5 ft and (1⁄8 in. 3 length in ft)/5
A Because of warpage, straightness tolerances do not apply to bars if any
subsequent heating operation or controlled cooling has been performed.
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A2. DIMENSIONAL TOLERANCES—SI UNITS
A2.1 Listed below are permissible variations in dimensions
expressed in SI units of measurement.
TABLE A2.1 Tolerances in Sectional Dimensions for Round and Square Bars and Round-Cornered Square Bars
Size, mm
Tolerance from
Specified Size, Over
and Under, mm or %A
Out-of-Round, or
Out-of-Square
Section,B mm or %A
To 7, incl 0.13 mm 0.20 mm
Over 7 to 11, incl 0.15 mm 0.22 mm
Over 11 to 15, incl 0.18 mm 0.27 mm
Over 15 to 19, incl 0.20 mm 0.30 mm
Over 19 to 250, incl 1 % 1.5 %
A The tolerance shall be rounded to the nearest tenth of a millimetre after calculation.
B Out-of-round is the difference between the maximum and the minimum diameters of the bar, measured at the same cross section. Out-of-square is the difference in
the two dimensions at the same cross section of a square bar between opposite faces.
TABLE A2.2 Tolerances in Cross Section for Hot-Wrought Hexagonal and Octagonal Steel Bars
Specified Size Between
Opposite Sides, mm
Tolerance from Specified Size, mm
Out of
Hexagon or
Out of
Octagon,
mmA Over Under
To 13, incl 0.18 0.18 0.3
Over 13 to 25, incl 0.25 0.25 0.4
Over 25 to 40, incl 0.55 0.35 0.6
Over 40 to 50, incl 0.8 0.40 0.8
Over 50 to 65, incl 1.2 0.40 1.2
Over 65 to 80, incl 1.6 0.40 1.6
Over 80 to 100, incl 2.0 0.40 2.0
A Out of hexagon or out of octagon is the greatest difference between any two dimensions at the cross section between opposite faces.
TABLE A2.3 Thickness and Width Tolerances for Hot-Wrought Square-Edge and Round-Edge Flat BarsA,B
Specified Width, mm
Tolerances from Specified Thickness for Thickness Given Over and Under, mm Tolerances from Specified
Width, mm
Over 5 to 6, incl Over 6 to 12,
incl
Over 12, to 25,
incl
Over 25 to 50,
incl
Over 50 to 75
Over 75 Over Under
To 25, incl 0.18 0.20 0.25 . . . . . . . . . 0.5 0.5
Over 25 to 50, incl 0.18 0.30 0.40 0.8 . . . . . . 1.0 1.0
Over 50 to 100, incl 0.20 0.40 0.50 0.8 1.2 1.2 1.5 1.0
Over 100 to 150, incl 0.25 0.40 0.50 0.8 1.2 1.2 2.5 1.5
Over 150 to 200, incl A 0.40 0.65 0.8 1.2 1.6 3.0 2.5
A When a square is held against a face and an edge of a square edge flat bar, the edge shall not deviate by more than 3° or 5 % of the thickness.
B Flats over 150 to 200 mm, incl in width are not available as hot-wrought bars in thickness 6 mm and under.
TABLE A2.4 Thickness, Length, and Out-of-Square Tolerances for Hot-Wrought Bar Size Angles
Specified Length of
Leg, mmA,B
Tolerances in Thickness for Thickness Given, Over and Under, mm Tolerances
for Length of
Leg Over
and Under,
mm
To 5, incl
Over 5 to
10, incl
Over 10
To 50, incl 0.2 0.2 0.3 1
Over 50 to 75, excl 0.3 0.4 0.4 2
A The longer leg of an unequal angle determines the size for tolerance.
B Out of square tolerances in either direction is 11⁄2 ° = 0.026 mm/mm.
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TABLE A2.5 Dimensional Tolerances for Hot-Wrought Bar Size Channels
Specified Size of
Channel, mm
Tolerances in Size, Over and Under, mm
Depth of SectionA Width of FlangesA
Thickness of Web
Out of Square of
Either Flange per mm
of Flange Width,B mm
To 5, incl Over 5
To 40, incl 1 1 0.2 0.4 0.03
Over 40 to 75, excl 2 2 0.4 0.5 0.03
A Measurements for depth of section and width of flanges are overall.
B For channels 16 mm and under in depth, out of square tolerance is 0.05 mm/mm.
TABLE A2.6 Dimensional Tolerances for Hot-Wrought Bar Size Tees
Specified Size
of Tee,A mm
Tolerances in Size, mm
Width or Depth,B Thickness of Flange Thickness of Stem Stem Out of
Over Under Over Under Over Under SquareC
To 30, incl 1 1 0.2 0.2 0.1 0.5 1
Over 30 to 50, incl 2 2 0.3 0.3 0.2 0.5 2
Over 50 to 75, excl 2 2 0.4 0.4 0.4 0.5 2
A The longer member of the unequal tee determines the size for tolerances.
B Measurements for width and depth are over all.
C Stem out of square is the tolerance from its true position of the center line of the stem measured at the point.
TABLE A2.7 Permissible Variations in Dimensions for Half-Rounds, Ovals, Half-Ovals, and Other Special Bar Size Sections
Due to mill facilities, tolerances on half-rounds, ovals, and other special bar size sections vary among the manufacturers and such tolerances should be negotiated
between the manufacturer and the purchaser.
TABLE A2.8 Length Tolerances for Hot-Wrought Rounds, Squares, Hexagons, Octagons, Flats, and Bar Size Sections
Specified Size of Rounds,
Squares, Hexagons and
Octagons, mm
Specified Size of Flats, mm Tolerances over Specified Length, mmA
Thickness Width 1500 3000 6000 9000 12 000
to to to to to
3000, 6000, 9000, 12 000, 18 000,
excl excl excl excl excl
Hot Shearing
To 25, incl to 25, incl to 75, incl 15 20 35 45 60
Over 25 to 50, incl over 25 to 75, incl 15 25 40 50 65
to 25, incl over 75 to 150, incl 15 25 40 50 65
Over 50 to 125, incl over 25 over 75 to 150, incl 25 40 45 60 70
Over 125 to 250, incl . . . . . . 50 65 70 75 85
Bar Size Sections over 6 to 25, incl over 150 to 200, incl 20 30 45 90 100
over 25 to 75, incl over 150 to 200, incl 30 45 50 90 100
. . . . . . 15 25 40 50 65
Hot Sawing
50 to 90, incl 25 and over 75 and over B 40 45 60 70
Over 90 to 125, incl 50 60 65 75
Over 125 to 250, incl . . . . . . B 65 70 75 85
A No tolerance under.
B Smaller sizes and shorter lengths are not hot sawed.
TABLE A2.9 Length Tolerances for Recutting of Bars Meeting Special Straightness Tolerances
Sizes of Rounds, Squares, Hexagons,
Octagons, Widths of Flats and
Maximum Dimensions of Other
Sections, mm
Tolerances over Specified Length, mmA
To 3700 mm,
incl
Over 3700 mm
To 75, incl 6 8
Over 75 to 150, incl 8 11
Over 150 to 200, incl 11 14
Rounds over 200 to 250, incl 14 18
A No tolerance under.
A 29/A 29M – 05
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Reproduction authorized per License Agreement with William Hughes (Cab Incorporated);
SUMMARY OF CHANGES
Committee A01 has identified the location of selected changes sinceA 29/A 29M-04e1 that may impact the use
of this standard. (Approved May 1, 2005.)
(1) Changed the hot sawing tolerances in Table A1.8 and Table
A2.8.
Committee A01 has identified the location of selected changes since A 29/A 29M-03 that may impact the use
of this standard. (Approved March 1, 2004.)
(1) Removed 9and Cold-Finished9 from Title
(2) Removed A331 and A695 (dropped) from list of specifications
in Scope
(3) Added Note to end of Scope.
(4) Removed 7.2
(5) Removed Tables A1.11, 12, 13, 14 and A2.11, 12, 13, 14
(6) Corrected Cr on grade 52100 in Table 2
TABLE A2.10 Straightness Tolerances for Hot-Wrought Bars and Bar Size SectionsA
Standard Tolerances 6 mm in any 1500 mm and (length in mm/250)B
Special Tolerances 3 mm in any 1500 mm and (length in mm/500)B
A Because of warpage, straightness tolerances do not apply to bars if any subsequent heating operation or controlled cooling has been performed.
B Round to the nearest whole millimetre.
A 29/A 29M – 05

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