Manufacture of ASTM A333, ASME SA333 Carbon Steel, Alloy Steel Seamless, Welded Pipes
Manufacturer of ASTM A-333, ASME SA-333 Carbon Steel, Alloy Steel Seamless, Welded Pipe
Designation: A 333/A 333M – 04a
Standard Specification for
Seamless and Welded Steel Pipe for Low-Temperature
Service1
This standard is issued under the fixed designation A 333/A 333M; 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 nominal (average) wall seamless
and welded carbon and alloy steel pipe intended for use at
low temperatures. Several grades of ferritic steel are included
as listed in Table 1. Some product sizes may not be available
under this specification because heavier wall thicknesses have
an adverse affect on low-temperature impact properties.
1.2 Supplementary Requirement S1 of an optional nature is
provided. This shall apply only when specified by the purchaser.
1.3 The values stated in either inch-pound units or SI units
are to be regarded separately as 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.
The inch-pound units shall apply unless the “M”
designation of this specification is specified in the order.
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
been substituted in this standard for such traditional terms as “nominal
diameter,” “size,” and “nominal size.” - Referenced Documents
2.1 ASTM Standards: 3
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
A 999/A 999M Specification for General Requirements for
Alloy and Stainless Steel Pipe
A 671 Specification for Electric-Fusion-Welded Steel Pipe
for Atmospheric and Lower Temperatures
E 23 Test Methods for Notched Bar Impact Testing of
Metallic Materials - Ordering Information
3.1 Orders for material under this specification should
include the following, as required, to describe the material
adequately:
3.1.1 Quantity (feet, centimetres, or number of lengths),
3.1.2 Name of material (seamless or welded pipe),
3.1.3 Grade (Table 1),
3.1.4 Size (NPS or outside diameter and schedule number of
average wall thickness),
3.1.5 Lengths (specific or random) (Section 9), (see the
Permissible Variations in Length section of Specification
A 999/A 999M),
3.1.6 End finish (see the Ends section of Specification
A 999/A 999M),
3.1.7 Optional requirements, (see the Heat Analysis requirement
in the Chemical Composition section of A 999/A 999M,
the Repair by Welding section, and the section on Nondestructive
Test Requirements),
3.1.8 Test report required, (see the Certification section of
Specification A 999/A 999M),
3.1.9 Specification designation, and
3.1.10 Special requirements or exceptions to this specification. - Materials and Manufacture
4.1 Manufacture—The pipe shall be made by the seamless
or welding process with the addition of no filler metal in the
welding operation. Grade 4 shall be made by the seamless
process.
NOTE 2—For electric-fusion-welded pipe, with filler metal added, see
Specification A 671.
4.2 Heat Treatment:
4.2.1 All seamless and welded pipe, other than Grades 8 and
11, shall be treated to control their microstructure in accordance
with one of the following methods:
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
A01.10 on Stainless and Alloy Steel Tubular Products.
Current edition approved May 1, 2004. Published June 2004. Originally
approved in 1950. Last previous edition approved in 2004 as A 333/A 333M – 04.
2 For ASME Boiler and Pressure Vessel Code applications see related Specification
SA-333 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.
4.2.1.1 Normalize by heating to a uniform temperature of
not less than 1500°F [815°C] and cool in air or in the cooling
chamber of an atmosphere controlled furnace.
4.2.1.2 Normalize as in 4.2.1.1, and, at the discretion of the
manufacturer, reheat to a suitable tempering temperature.
4.2.1.3 For the seamless process only, reheat and control hot
working and the temperature of the hot-finishing operation to a
finishing temperature range from 1550 to 1750°F [845 to
945°C] and cool in air or in a controlled atmosphere furnace
from an initial temperature of not less than 1550°F [845°C].
4.2.1.4 Treat as in 4.2.1.3 and, at the discretion of the
manufacturer, reheat to a suitable tempering temperature.
4.2.1.5 Seamless pipe of Grades 1, 6, and 10 may be heat
treated by heating to a uniform temperature of not less than
1500°F [815°C], followed by quenching in liquid and reheating
to a suitable tempering temperature, in place of any of the other
heat treatments provided for in 4.2.1.
4.2.2 Grade 8 pipe shall be heat treated by the manufacturer
by either of the following methods:
4.2.2.1 Quenched and Tempered—Heat to a uniform temperature
of 1475 6 25°F [800 6 15°C]; hold at this temperature
for a minimum time in the ratio of 1 h/in. [2 min/mm] of
thickness, but in no case less than 15 min; quench by
immersion in circulating water. Reheat until the pipe attains a
uniform temperature within the range from 1050 to 1125°F
[565 to 605°C]; hold at this temperature for a minimum time in
the ratio of 1 h/in. [2 min/mm] of thickness, but in no case less
than 15 min; cool in air or water quench at a rate no less than
300°F [165°C]/h.
4.2.2.2 Double Normalized and Tempered—Heat to a uniform
temperature of 1650 6 25°F [900 6 15°C]; hold at this
temperature for a minimum time in the ratio of 1 h/in. [2
min/mm] of thickness, but in no case less than 15 min; cool in
air. Reheat until the pipe attains a uniform temperature of 1450
6 25°F [790 6 15°C]; hold at this temperature for a minimum
time in the ratio of 1 h/in. [2 min/mm] of thickness, but in no
case less than 15 min; cool in air. Reheat to a uniform
temperature within the range from 1050 to 1125°F [565 to
605°C]; hold at this temperature for a minimum time of 1 h/in.
[2 min/mm] of thickness but in no case less than 15 min; cool
in air or water quench at a rate not less than 300°F [165°C]/h.
4.2.3 Whether to anneal Grade 11 pipe is per agreement
between purchaser and supplier. When Grade 11 pipe is
annealed, it shall be normalized in the range of 1400 to 1600°F
[760 to 870°C].
4.2.4 Material from which test specimens are obtained shall
be in the same condition of heat treatment as the pipe
furnished. Material from which specimens are to be taken shall
be heat treated prior to preparation of the specimens.
4.2.5 When specified in the order the test specimens shall be
taken from full thickness test pieces which have been stress
relieved after having been removed from the heat-treated pipe.
The test pieces shall be gradually and uniformly heated to the
prescribed temperature, held at that temperature for a period of
time in accordance with Table 2, and then furnace cooled at a
temperature not exceeding 600°F [315°C]. Grade 8 shall be
cooled at a minimum rate of 300°F [165°C]/h in air or water to
a temperature not exceeding 600°F [315°C]. - Chemical Composition
5.1 The steel shall conform to the requirements as to
chemical composition prescribed in Table 1.
5.2 When Grades 1, 6, or 10 are ordered under this
specification, supplying an alloy grade that specifically requires
the addition of any element other than those listed for
the ordered grade in Table 1 is not permitted. However, the
addition of elements required for the deoxidation of the steel is
permitted.
TABLE 1 Chemical Requirements
Element
Composition, %
Grade 1A Grade 3 Grade 4 Grade 6A Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
Carbon, max 0.30 0.19 0.12 0.30 0.19 0.13 0.20 0.20 0.10
Manganese 0.40–1.06 0.31–0.64 0.50–1.05 0.29–1.06 0.90 max 0.90 max 0.40–1.06 1.15–1.50 0.60 max
Phosphorus, max 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.035 0.025
Sulfur, max 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.015 0.025
Silicon … 0.18–0.37 0.08–0.37 0.10 min 0.13–0.32 0.13–0.32 … 0.10–0.35 0.35 max
Nickel … 3.18–3.82 0.47–0.98 … 2.03–2.57 8.40–9.60 1.60–2.24 0.25 max 35.0–37.0
Chromium … … 0.44–1.01 … … … … 0.15 max 0.50 max
Copper … … 0.40–0.75 … … … 0.75–1.25 0.15 max …
Aluminum … … 0.04–0.30 … … … … 0.06 max …
Vanadium, max … … … … … … … 0.12 …
Columbium, max … … … … … … … 0.05 …
Molybdenum, max … … … … … … … 0.05 0.50 max
Cobalt … … … … … … … … 0.50 max
A For each reduction of 0.01 % carbon below 0.30 %, an increase of 0.05 % manganese above 1.06 % would be permitted to a maximum of 1.35 % manganese.
TABLE 2 Stress Relieving of Test Pieces
Metal TemperatureA,B Minimum Holding Time,
h/in. [min/mm]
Grades 1, 3, 6, 7, and 10 Grade 4C of Thickness
°F °C °F °C
1100 600 1150 620 1 [2.4]
1050 565 1100 600 2 [4.7]
1000 540 1050 565 3 [7.1]
A For intermediate temperatures, the holding time shall be determined by
straight-line interpolation.
B Grade 8 shall be stress relieved at 1025 to 1085°F, [550 to 585°C], held for a
minimum time of 2 h for thickness up to 1.0 in. [25.4 mm], plus a minimum of 1 h
for each additional inch [25.4 mm] of thickness and cooled at a minimum rate of
300°F [165°C]/h in air or water to a temperature not exceeding 600°F [315°C].
C Unless otherwise specified, Grade 4 shall be stress relieved at 1150°F
[620°C].
A 333/A 333M – 04a
2 - Product Analysis
6.1 At the request of the purchaser, an analysis of one billet
or two samples of flat-rolled stock from each heat or of two
pipes from each lot shall be made by the manufacturer. A lot of
pipe shall consist of the following:
NPS Designator Length of Pipe in Lot
Under 2 400 or fraction thereof
2 to 6 200 or fraction thereof
Over 6 100 or fraction thereof
6.2 The results of these analyses shall be reported to the
purchaser or the purchaser’s representative and shall conform
to the requirements specified.
6.3 If the analysis of one of the tests specified in 6.1 does
not conform to the requirements specified, an analysis of each
billet or pipe from the same heat or lot may be made, and all
billets or pipe conforming to the requirements shall be accepted. - Tensile Requirements
7.1 The material shall conform to the requirements as to
tensile properties prescribed in Table 3. - Impact Requirements
8.1 For Grades 1, 3, 4, 6, 7, 9, and 10, the notched-bar
impact properties of each set of three impact specimens,
including specimens for the welded joint in welded pipe with
wall thicknesses of 0.120 in. [3 mm] and larger, when tested at
temperatures in conformance with 14.1 shall be not less than
the values prescribed in Table 4. The impact test is not required
for Grade 11.
8.1.1 If the impact value of one specimen is below the
minimum value, or the impact values of two specimens are less
than the minimum average value but not below the minimum
value permitted on a single specimen, a retest shall be allowed.
The retest shall consist of breaking three additional specimens
and each specimen must equal or exceed the required average
value. When an erratic result is caused by a defective specimen,
or there is uncertainty in test procedures, a retest will be
allowed.
8.2 For Grade 8 each of the notched bar impact specimens
shall display a lateral expansion opposite the notch of not less
than 0.015 in. [0.38 mm].
8.2.1 When the average lateral expansion value for the three
impact specimens equals or exceeds 0.015 in. [0.38 mm] and
the value for one specimen is below 0.015 in. [0.38 mm] but
not below 0.010 in. [0.25 mm], a retest of three additional
specimens may be made. The lateral expansion of each of the
retest specimens must equal or exceed 0.015 in. [0.38 mm].
8.2.2 Lateral expansion values shall be determined by the
procedure in Test Methods and Definitions A 370.
8.2.3 The values of absorbed energy in foot-pounds and the
fracture appearance in percentage shear shall be recorded for
information. A record of these values shall be retained for a
period of at least 2 years. - Lengths
9.1 If definite lengths are not required, pipe may be ordered
in single random lengths of 16 to 22 ft (Note 3) with 5 % 12 to
16 ft (Note 3), or in double random lengths with a minimum
average of 35 ft (Note 3) and a minimum length of 22 ft (Note
3) with 5 % 16 to 22 ft (Note 3).
NOTE 3—This value(s) applies when the inch-pound designation of this
specification is the basis of purchase. When the “M” designation of this
specification is the basis of purchase, the corresponding metric value(s)
shall be agreed upon between the manufacturer and purchaser. - Workmanship, Finish and Appearance
10.1 The pipe manufacturer shall explore a sufficient number
of visual surface imperfections to provide reasonable
assurance that they have been properly evaluated with respect
to depth. Exploration of all surface imperfections is not
required but may be necessary to ensure compliance with 10.2.
10.2 Surface imperfections that penetrate more than 12½ %
of the nominal wall thickness or encroach on the minimum
wall thickness shall be considered defects. Pipe with such
defects shall be given one of the following dispositions:
10.2.1 The defect may be removed by grinding provided
that the remaining wall thickness is within specified limits.
10.2.2 Repaired in accordance with the repair welding
provisions of 10.5.
10.2.3 The section of pipe containing the defect may be cut
off within the limits of requirements on length.
10.2.4 The defective pipe may be rejected.
10.3 To provide a workmanlike finish and basis for evaluating
conformance with 10.2, the pipe manufacturer shall
remove by grinding the following:
10.3.1 Mechanical marks, abrasions and pits, any of which
imperfections are deeper than 1⁄16 in. [1.6 mm], and
10.3.2 Visual imperfections commonly referred to as scabs,
seams, laps, tears, or slivers found by exploration in accordance
with 10.1 to be deeper than 5 % of the nominal wall
thickness.
10.4 At the purchaser’s discretion, pipe shall be subject to
rejection if surface imperfections acceptable under 10.2 are not
scattered, but appear over a large area in excess of what is
considered a workmanlike finish. Disposition of such pipe shall
be a matter of agreement between the manufacturer and the
purchaser.
10.5 When imperfections or defects are removed by grinding,
a smooth curved surface shall be maintained, and the wall
thickness shall not be decreased below that permitted by this
specification. The outside diameter at the point of grinding may
be reduced by the amount so removed.
10.5.1 Wall thickness measurements shall be made with a
mechanical caliper or with a properly calibrated nondestructive
testing device of appropriate accuracy. In case of dispute, the
measurement determined by use of the mechanical caliper shall
govern.
10.6 Weld repair shall be permitted only subject to the
approval of the purchaser and in accordance with Specification
A 999/A 999M.
10.7 The finished pipe shall be reasonably straight. - General Requirements
11.1 Material furnished to this specification shall conform to
the applicable requirements of the current edition of Specification
A 999/A 999M unless otherwise provided herein.
A 333/A 333M – 04a
3
TABLE 3 Tensile Requirements
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa
Tensile strength, min
Yield strength, min
55 000
30 000
380
205
65 000
35 000
450
240
60 000
35 000
415
240
60 000
35 000
415
240
65 000
35 000
450
240
100 000
75 000
690
515
63 000
46 000
435
315
80 000
65 000
550
450
65 000
35 000
450
240
Longitudinal
Transverse
Longitudinal
Transverse
Longitudinal
Transverse
Longitudinal
Transverse
Longitudinal
Transverse
Longitudinal
Transverse
Longitudinal
Transverse
Longitudinal
Transverse
Longitudinal
Elongation in 2 in. or 50
mm, (or 4D), min, %:
Basic minimum
elongation for walls 5⁄16
in. [8 mm] and over in
thickness, strip tests,
and for all small sizes
tested in full section
35 25 30 20 30 16.5 30 16.5 30 22 22 … 28 … 22 … 18A
When standard round
2-in. or 50-mm gage
length or proportionally
smaller size test
specimen with the gage
length equal to 4D (4
times the diameter) is
used
28 20 22 14 22 12 22 12 22 14 16 … … … 16 … …
For strip tests, a
deduction for each 1⁄32
in. [0.8 mm] decrease in
wall thickness below 5⁄16
in. [8 mm] from the
basic minimum
elongation of the
following percentage
1.75B 1.25B 1.50B 1.00B 1.50B 1.00B 1.50B 1.00B 1.50B 1.00B 1.25B … 1.50B … 1.25B … . . .
Wall Thickness
Elongation in 2 in. or 50 mm, min, %C
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10
in. mm Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Transtudinal
verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse
5⁄16 (0.312) 8 35 25 30 20 30 16 30 16 30 22 22 … 28 … 22 …
9⁄32 (0.281) 7.2 33 24 28 19 28 15 28 15 28 21 21 … 26 … 21 …
1⁄4 (0.250) 6.4 32 23 27 18 27 15 27 15 27 20 20 … 25 … 20 …
7⁄32 (0.219) 5.6 30 … 26 … 26 … 26 … 26 … 18 … 24 … 18 …
3⁄16 (0.188) 4.8 28 … 24 … 24 … 24 … 24 … 17 … 22 … 17 …
5⁄32 (0.156) 4 26 … 22 … 22 … 22 … 22 … 16 … 20 … 16 …
1⁄8 (0.125) 3.2 25 … 21 … 21 … 21 … 21 … 15 … 19 … 15 …
3⁄32 (0.094) 2.4 23 … 20 … 20 … 20 … 20 … 13 … 18 … 13 …
1⁄16 (0.062) 1.6 21 … 18 … 18 … 18 … 18 … 12 … 16 … 12 …
A Elongation of Grade 11 is for all walls and small sizes tested in full section.
B The following table gives the calculated minimum values.
C Calculated elongation requirements shall be rounded to the nearest whole number.
Note—The preceding table gives the computed minimum elongation values for each 1⁄32-in. [0.80-mm] decrease in wall thickness. Where the wall thickness lies between
two values shown above, the minimum elongation value is determined by the following equation:
Grade Direction of Test Equation
1 Longitudinal E = 56t + 17.50 [E = 2.19t + 17.50]
Transverse E = 40t + 12.50 [E = 1.56t + 12.50]
3 Longitudinal E = 48t + 15.00 [E = 1.87t + 15.00]
Transverse E = 32t + 10.00 [E = 1.25t + 10.00]
4 Longitudinal E = 48t + 15.00 [E = 1.87t + 15.00]
Transverse E = 32t + 6.50 [E = 1.25t+ 6.50]
6 Longitudinal E = 48t + 15.00 [E = 1.87t + 15.00]
Transverse E = 32t + 6.50 [E = 1.25t + 6.50]
7 Longitudinal E = 48t + 15.00 [E = 1.87t + 15.00]
Transverse E = 32t + 11.00 [E = 1.25t + 11.00]
8 and 10 Longitudinal E = 40t + 9.50 [E = 1.56t + 9.50]
9 Longitudinal E = 48t + 13.00 [E = 1.87t + 13.00]
where:
E = elongation in 2 in. or 50 mm, in %, and
t = actual thickness of specimen, in. [mm].
A 333/A 333M – 04a
4 - Mechanical Testing
12.1 Sampling—For mechanical testing, the term “lot” applies
to all pipe of the same nominal size and wall thickness (or
schedule) that is produced from the same heat of steel and
subjected to the same finishing treatment in a continuous
furnace. If the final heat treatment is in a batch-type furnace,
the lot shall include only those pipes that are heat treated in the
same furnace charge.
12.2 Transverse or Longitudinal Tensile Test and Flattening
Test—For material heat treated in a batch-type furnace, tests
shall be made on 5 % of the pipe from each lot. If heat treated
by the continuous process, tests shall be made on a sufficient
number of pipe to constitute 5 % of the lot, but in no case less
than 2 pipes.
12.3 Hydrostatic Test—Each length of pipe shall be subjected
to the hydrostatic test.
12.4 Impact Test—One notched bar impact test, consisting
of breaking three specimens, shall be made from each heat
represented in a heat-treatment load on specimens taken from
the finished pipe. This test shall represent only pipe from the
same heat and the same heat-treatment load, the wall thicknesses
of which do not exceed by more than 1⁄4 in. [6.3 mm] the
wall thicknesses of the pipe from which the test specimens are
taken. If heat treatment is performed in continuous or batchtype
furnaces controlled within a 50°F [30°C] range and
equipped with recording pyrometers so that complete records
of heat treatment are available, then one test from each heat in
a continuous run only shall be required instead of one test from
each heat in each heat-treatment load.
12.5 Impact Tests (Welded Pipe)—On welded pipe, additional
impact tests of the same number as required in 12.3 or
12.4 shall be made to test the weld.
12.6 Specimens showing defects while being machined or
prior to testing may be discarded and replacements shall be
considered as original specimens.
12.7 Results obtained from these tests shall be reported to
the purchaser or his representative. - Specimens for Impact Test
13.1 Notched bar impact specimens shall be of the simple
beam, Charpy-type, in accordance with Test Methods E 23,
Type A with a V notch. Standard specimens 10 by 10 mm in
cross section shall be used unless the material to be tested is of
insufficient thickness, in which case the largest obtainable
subsize specimens shall be used. Charpy specimens of width
along the notch larger than 0.394 in. [10 mm] or smaller than
0.099 in. [2.5 mm] are not provided for in this specification.
13.2 Test specimens shall be obtained so that the longitudinal
axis of the specimen is parallel to the longitudinal axis of
the pipe while the axis of the notch shall be perpendicular to
the surface. On wall thicknesses of 1 in. [25 mm] or less, the
specimens shall be obtained with their axial plane located at the
midpoint; on wall thicknesses over 1 in. [25 mm], the specimens
shall be obtained with their axial plane located 1⁄2 in.
[12.5 mm] from the outer surface.
13.3 When testing welds the specimen shall be, whenever
diameter and thickness permit, transverse to the longitudinal
axis of the pipe with the notch of the specimen in the welded
joint and perpendicular to the surface. When diameter and
thickness do not permit obtaining transverse specimens, longitudinal
specimens in accordance with 13.2 shall be obtained;
the bottom of the notch shall be located at the weld joint. - Impact Test
14.1 Except when the size of the finished pipe is insufficient
to permit obtaining subsize impact specimens, all material
furnished to this specification and marked in accordance with
Section 16 shall be tested for impact resistance at the minimum
temperature for the respective grades as shown in Table 5.
14.1.1 Special impact tests on individual lots of material
may be made at other temperatures as agreed upon between the
manufacturer and the purchaser.
14.1.2 When subsize Charpy impact specimens are used and
the width along the notch is less than 80 % of the actual wall
thickness of the original material, the specified Charpy impact
test temperature for Grades 1, 3, 4, 6, 7, 9, and 10 shall be
lower than the minimum temperature shown in Table 5 for the
respective grade. Under these circumstances the temperature
reduction values shall be by an amount equal to the difference
(as shown in Table 6) between the temperature reduction
corresponding to the actual material thickness and the temperature
reduction corresponding to the Charpy specimen width
actually tested. Appendix X1 shows some examples of how the
temperature reductions are determined.
14.2 The notched bar impact test shall be made in accordance
with the procedure for the simple beam, Charpy-type test
of Test Methods E 23.
14.3 Impact tests specified for temperatures lower than 70°F
[20°C] should be made with the following precautions. The
impact test specimens as well as the handling tongs shall be
cooled a sufficient time in a suitable container so that both
reach the desired temperature. The temperature shall be measured
with thermocouples, thermometers, or any other suitable
TABLE 4 Impact Requirements for Grades 1, 3, 4, 6, 7, 9, and 10
Size of
Specimen, mm
Minimum Average Notched
Bar Impact Value of
Each Set of Three
SpecimensA
Minimum Notched Bar
Impact Value of One
Specimen Only of
a SetA
ft·lbf J ft·lbf J
10 by 10 13 18 10 14
10 by 7.5 10 14 8 11
10 by 6.67 9 12 7 9
10 by 5 7 9 5 7
10 by 3.33 5 7 3 4
10 by 2.5 4 5 3 4
A Straight line interpolation for intermediate values is permitted.
TABLE 5 Impact Temperature
Grade
Minimum Impact Test Temperature
°F °C
1 −50 −45
3 −150 −100
4 −150 −100
6 −50 −45
7 −100 −75
8 −320 −195
9 −100 −75
10 −75 −60
A 333/A 333M – 04a
5
devices and shall be controlled within 3°F [2°C]. The specimens
shall be quickly transferred from the cooling device to
the anvil of the Charpy impact testing machine and broken with
a time lapse of not more than 5 s. - Hydrostatic or Nondestructive Electric Test
15.1 Each pipe shall be subjected to the nondestructive
electric test or the hydrostatic test. The type of test to be used
shall be at the option of the manufacturer, unless otherwise
specified in the purchase order.
15.2 The hydrostatic test shall be in accordance with Specification
A 999/A 999M.
15.3 Nondestructive Electric Test—Nondestructive electric
tests shall be in accordance with Specification A 999/A 999M,
with the following addition:
15.3.1 If the test signals were produced by visual imperfections
(listed in 15.3.2), the pipe may be accepted based on
visual examination, provided the imperfection is less than
0.004 in. (0.1 mm) or 12½ % of the specified wall thickness
(whichever is greater).
15.3.2 Visual Imperfections:
15.3.2.1 Scratches,
15.3.2.2 Surface roughness,
15.3.2.3 Dings,
15.3.2.4 Straightener marks,
15.3.2.5 Cutting chips,
15.3.2.6 Steel die stamps,
15.3.2.7 Stop marks, or
15.3.2.8 Pipe reducer ripple. - Product Marking
16.1 Except as modified in 16.1.1, in addition to the
marking prescribed in Specification A 999/A 999M, the marking
shall include whether hot finished, cold drawn, seamless or
welded, the schedule number and the letters “LT” followed by
the temperature at which the impact tests were made, except
when a lower test temperature is required because of reduced
specimen size, in which case, the higher impact test temperature
applicable to a full-size specimen should be marked.
16.1.1 When the size of the finished pipe is insufficient to
obtain subsize impact specimens, the marking shall not include
the letters “LT” followed by an indicated test temperature
unless Supplementary Requirement S1 is specified.
16.1.2 When the pipe is furnished in the quenched and
tempered condition, the marking shall include the letters “QT,”
and the heat treatment condition shall be reported to the
purchaser or his representative. - Keywords
17.1 low; low temperature service; seamless steel pipe;
stainless steel pipe; steel pipe; temperature service applications
SUPPLEMENTARY REQUIREMENTS
The following supplementary requirement shall apply only when specified by the purchaser in the
contract or order.
S1. Subsize Impact Specimens
S1.1 When the size of the finished pipe is insufficient to
permit obtaining subsize impact specimens, testing shall be a
matter of agreement between the manufacturer and the
purchaser.
TABLE 6 Impact Temperature Reduction
Specimen Width Along Notch or Actual
Material Thickness
Temperature Reduction,
Degrees ColderA
in. mm °F °C
0.394 10 (standard size) 0 0
0.354 9 0 0
0.315 8 0 0
0.295 7.5 (3⁄4 std. size) 5 3
0.276 7 8 4
0.262 6.67 (2⁄3 std. size) 10 5
0.236 6 15 8
0.197 5 (1⁄2 std. size) 20 11
0.158 4 30 17
0.131 3.33 (1⁄3 std. size) 35 19
0.118 3 40 22
0.099 2.5 (1⁄4 std. size) 50 28
A Straight line interpolation for intermediate values is permitted.
A 333/A 333M – 04a
6
APPENDIX
(Nonmandatory Information)
X1. DETERMINATION OF TEMPERATURE REDUCTIONS
X1.1 Under the circumstances stated in 14.1.2, the impact
test temperatures specified in Table 5 must be lowered. The
following examples are offered to describe the application of
the provisions of 14.1.2.
X1.1.1 When subsize specimens are used (see 10.1) and the
width along the notch of the subsize specimen in 80 % or
greater of the actual wall thickness of the original material, the
provisions of 14.1.2 do not apply.
X1.1.1.1 For example, if the actual wall thickness of pipe
was 0.200 in. [5.0 mm] and the width along the notch of the
largest subsize specimen obtainable is 0.160 in. [4 mm] or
greater, no reduction in test temperature is required.
X1.1.2 When the width along the subsize specimen notch is
less than 80 % of the actual wall thickness of the pipe, the
required reduction in test temperature is computed by taking
the difference between the temperature reduction values shown
in Table 6 for the actual pipe thickness and the specimen width
used.
X1.1.2.1 For example, if the pipe were 0.262 in. [6.67 mm]
thick and the width along the Charpy specimen notch was 3.33
mm (1/3 standard size), the test temperature would have to be
lowered by 25°F [14°C]. That is, the temperature reduction
corresponding to the subsize specimen is 35°F [19°C]; the
temperature reduction corresponding to the actual pipe thickness
is 10°F [5°C]; the difference between these two values is
the required reduction in test temperature.
SUMMARY OF CHANGES
Committee A01 has identified the location of selected changes to this specification since the last issue,
A 333/A 333M – 04, that may impact the use of this specification. (Approved May 1, 2004)
(1) Replaced all references to Note 4 in 9.1 with Note 3. (2) Revised Section 12 to incorporate Note 4 into the text.
Committee A01 has identified the location of selected changes to this specification since the last issue, A 333/A 333M – 99,
that may impact the use of this specification. (Approved March 1, 2004)
(1) Replaced Specification A 530/A 530M with Specification
A 999/A 999M in the Referenced Documents.
(2) Replaced Specification A 530/A 530M with Specification
A 999/A 999M in Sections 3, 11, 15, and 16.
(3) Extensively revised Section 15.
A 333/A 333M – 04a
Inspection & Approval Certificates : C/W Certificate (Calibration Works Certificate) EN-10204 3.1 / DIN-50049 3.1 / ISO-10474 3.1 Mill Test Certificate,
ISI Mark, BIS Certified, NACE HIC TM-0284 / NACE MR-0103 / NACE MR-0175 / ISO 15166, CE Marking, PED Certified, PED Approved,
European Pressure Equipment Directive PED-2014/68/EU, AD-2000-WO, ASME Boiler & Pressure Vessel Code Section-II Plate A Edition 2019,
API 6A (American Petroleum Institute), ISO 9001 Certified, NADCAP Certified, EN9100 Certified, AS9100 Certified with EN 10204 3.2 Certificate
duly Certified & Approved by IBR (Indian Boiler Regulations), LR Class (Lloyd’s Register), GL (Germanischer Lloyd), BV (Bureau Veritas),
DNV (Det Norske Veritas), ABS Class (American Bureau of Shipping), SGS, TUV, RINA, IR Class (Indian Register of Shipping),
NORSOK Approved Standard M-630, M-650 Rev.3
If you have any requirement of above items, please feel free to contact us
Regards,
CONTACT PERSON :
MUKESH SHAH
Director
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