Manufacture of ASTM A351, ASME SA351 Stainless Steel, Duplex, Super Duplex Castings

Manufacturer of ASTM A-351, ASME SA-351 Stainless Steel, Duplex, Super Duplex Casting
Designation: A 351/A 351M – 03
Standard Specification for
Castings, Austenitic, Austenitic-Ferritic (Duplex), for
Pressure-Containing Parts1
This standard is issued under the fixed designation A 351/A 351M; 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 austenitic and austeniticferritic
(duplex) steel castings for valves, flanges, fittings, and
other pressure-containing parts (Note 1).
NOTE 1—Carbon steel castings for pressure-containing parts are covered
by Specification A 216/A 216M, and low-alloy steel castings by
Specification A 217/A 217M.
1.2 A number of grades of austenitic and austenitic-ferritic
steel castings are included in this specification. Since these
grades possess varying degrees of suitability for service at high
temperatures or in corrosive environments, it is the responsibility
of the purchaser to determine which grade shall be
furnished. Selection will depend on design and service conditions,
mechanical properties, and high-temperature or
corrosion-resistant characteristics, or both.
1.2.1 Because of thermal instability, Grades CE20N, CF3A,
CF3MA, and CF8A are not recommended for service at
temperatures above 800°F [425°C].
1.2.2 Because of embrittlement phases, Grade CD4MCu is
not recommended for service at temperatures above 600°F
[316°C].
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.
Referenced Documents
2.1 ASTM Standards:
A 216/A 216M Specification for Steel Castings, Carbon,
Suitable for Fusion Welding, for High-Temperature Service3
A 217/A 217M Specification for Steel Castings, Martensitic
Stainless and Alloy, for Pressure-Containing Parts,
Suitable for High-Temperature Service3
A 488/A 488M Practice for Steel Castings,Welding, Qualification
of Procedures and Personnel3
A 703/A 703M Specification for Steel Castings, General
Requirements, for Pressure-Containing Parts3
E 165 Test Method for Liquid Penetrant Examination4
E 709 Guide for Magnetic Particle Examination4
2.2 Manufacturers Standardization Society of the Valve and
Fittings Industry Standard:
SP-55 Quality Standard for Steel Castings for Valves,
Flanges, and Fittings and Other Components (Visual
Method)5
General Conditions for Delivery
3.1 Material furnished to this specification shall conform to
the requirements of Specification A 703/A 703M, including
any supplementary requirements that are indicated in the
purchase order. Failure to comply with the general requirements
of Specification A 703/A 703M constitutes nonconformance
with this specification. In case of conflict between the
requirements of this specification and Specification A 703/
A 703M, this specification shall prevail.
3.2 The post weld heat treatment requirements of Supplementary
Requirement S11 may be specified when austenitic
castings other than HK, HT, or CT15C are to be subjected to
severe corrosive service.
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
A01.18 on Castings.
Current edition approved May 10, 2003. Published June 2003. Originally
approved in 1952. Last previous edition approved in 2000 as A 351/A 351M – 00.
2 For ASME Boiler and Pressure Vessel Code applications, see related Specification
SA-351/SA-351M in Section II of that code.
3 Annual Book of ASTM Standards, Vol 01.02.
4 Annual Book of ASTM Standards, Vol 03.03.
5 Available from Manufacturers’ Standardization Society of the Valve and
Fittings Industry, 1815 N. Fort Myer Drive, Arlington, VA 22209.
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 Qingdao Casting Quality Industrial Co., Limited 19428-2959, United States. http://www.castingquality.com
Ordering Information
4.1 The inquiry and order should include or indicate the
following:
4.1.1 A description of the casting by pattern number or
drawing (dimensional tolerances shall be included on the
casting drawing),
4.1.2 Grade of steel,
4.1.3 Options in the specification, and
4.1.4 Supplementary requirements desired, including the
standards of acceptance.
Process
5.1 The steel shall be made by the electric furnace process
with or without separate refining such as argon-oxygen decarburization
(AOD).
Heat Treatment
6.1 All castings shall receive a heat treatment at the temperature
specified in Table 1, followed by a quench in water or
rapid cool by other means except as noted.
NOTE 2—Proper heat treatment of these alloys is usually necessary to
enhance corrosion resistance and in some cases to meet mechanical
properties. Minimum heat-treat temperatures are specified; however, it is
sometimes necessary to heat-treat at higher temperatures, hold for some
minimum time at temperature and then rapidly cool the castings in order
to enhance the corrosion resistance and meet mechanical properties.
Chemical Composition
7.1 The steel shall conform to the requirements as to
chemical composition prescribed in Table 2.
Tensile Properties
8.1 Steel used for the castings shall conform to the requirements
as to tensile properties prescribed in Table 3.
Quality
9.1 The surface of the casting shall be examined visually
and shall be free of adhering sand, scale, cracks, and hot tears.
Other surface discontinuities shall meet the visual acceptance
standards specified in the order. Visual Method SP 55 or other
visual standards may be used to define acceptable surface
discontinuities and finish. Unacceptable visual surface discontinuities
shall be removed and their removal verified by visual
examination of the resultant cavities.
9.2 When additional inspection is desired, Supplementary
Requirements S5, S6, and S10 may be ordered.
9.3 The castings shall not be peened, plugged, or impregnated
to stop leaks.
Repair by Welding
10.1 Repairs shall be made using procedures and welders
qualified under Practice A 488/A 488M.
10.2 Weld repairs shall be inspected to the same quality
standards that are used to inspect the castings. When castings
are produced with Supplementary Requirement S5 specified,
weld repairs on castings that have leaked on hydrostatic test, or
on castings in which the depth of any cavity prepared for repair
welding exceeds 20 % of the wall thickness or 1 in. [25 mm],
whichever is smaller, or on castings in which any cavity
prepared for welding is greater than approximately 10 in.2[65
cm2], shall be radiographed to the same standards that are used
to inspect the castings. When castings are produced with
Supplementary Requirement S6 specified, weld repairs shall be
inspected by liquid penetrant examination to the same standards
that are used to inspect the castings.
NOTE 3—When austenitic steel castings are to be used in services
where they will be subject to stress corrosion, the purchaser should so
indicate in his order and such castings should be solution-heat treated
following all weld repairs.
Keywords
11.1 austenitic stainless steel; duplex stainless steel; pressure
containing parts; stainless steel; steel castings
TABLE 1 Heat-Treatment Requirements
Grade
Temperature, min
°F °C
HK30, HK40, HT30, CT15C as-cast as-cast
CF3, CF3A, CF8, CF8A, CF3M,
CF3MA, CF8M, CF3MN, CG3M, CF10,
CF10M, CG8M, CD4MCu
1900 1040
CF10SMnN, CF8C, CF10MC 1950 1065
CD3MWCuN 2010 1100
CN7M, CG6MMN, CE8MN 2050 1120
CK3MCuN, CN3MN, CH8, CH10, CH20,
CK20
2100 1150
CE20NA 2225 1220
A Grade shall be quenched in water or the castings may be furnace cooled to
2050°F [1120°C] minimum, held for 15 min minimum and then quenched in water
or rapidly cooled by other means.
A 351/A 351M – 03
2
Qingdao Casting Quality Industrial Co., Limited http://www.castingquality.com
TABLE 2 Chemical Requirements
NOTE—Tungsten is a new element for Table 2.
Element, %
(max, except
where
range is
given)
CF3,
CF3A
J92700
CF8,
CF8A
J92600
CF3M,
CF3MA
J92800
CF8M
J92900
CF3MN
J92804
CF8C
J92710
CF10
J92950
CF10M
J92901
CH8
J93400
CH10
J93401
CH20
J93402
CK20
J94202
HK30
J94203
HK40
J94204
Carbon 0.03 0.08 0.03 0.08 0.03 0.08 0.04– 0.04– 0.08 0.04– 0.04– 0.04– 0.25– 0.35–
0.10 0.10 0.10 0.20 0.20 0.35 0.45
Manganese 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50
Silicon 2.00 2.00 1.50 1.50 1.50 2.00 2.00 1.50 1.50 2.00 2.00 1.75 1.75 1.75
Sulfur 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040
Phosphorus 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040
Chromium 17.0– 18.0– 17.0– 18.0– 17.0– 18.0– 18.0– 18.0– 22.0– 22.0– 22.0– 23.0– 23.0– 23.0–
21.0 21.0 21.0 21.0 21.0 21.0 21.0 21.0 26.0 26.0 26.0 27.0 27.0 27.0
Nickel 8.0–
12.0
8.0–
11.0
9.0–
13.0
9.0–
12.0
9.0–
13.0
9.0–
12.0
8.0–
11.0
9.0–
12.0
12.0–
15.0
12.0–
15.0
12.0–
15.0
19.0–
22.0
19.0–
22.0
19.0–
22.0
Molybde- 0.50 0.50 2.0– 2.0– 2.0– 0.50 0.50 2.0– 0.50 0.50 0.50 0.50 0.50 0.50
num 3.0 3.0 3.0 3.0
Columbium . . . . . . . . . . . . . . . A . . . . . . . . . . . . . . . . . . . . . . . .
(niobium)
Vanadium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nitrogen . . . . . . . . . . . . 0.10– . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.20
Copper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tungsten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Iron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Element, %
(max, except
where
range is
given)
HT30
N08030
CF10MC
CN7M
N08007
CN3MN
J94651
CD-
4MCu
J93370
CE8MN
CG-
6MMN
J93790
CG8M
J93000
CF10SMnN
J92972
CT15C
N08151
CK-
3MCuN
J93254
CE20N
J92802
CG3M
J92999
CD3MWCuNB
J93380
Carbon 0.25– 0.10 0.07 0.03 0.04 0.08 0.06 0.08 0.10 0.05– 0.025 0.20 0.03 0.03
0.35 max 0.15
Manganese 2.00 1.50 1.50 2.00 1.00 1.00 4.00– 1.50 7.00– 0.15– 1.20 1.50 1.50 1.00
max 6.00 9.00 1.50
Silicon 2.50 1.50 1.50 1.00 1.00 1.50 1.00 1.50 3.50– 0.50– 1.00 1.50 1.50 1.00
max 4.50 1.50
Sulfur 0.040 0.040 0.040 0.010 0.04 0.040 0.030 0.04 0.030 0.03 0.010 0.040 0.04 0.025
max
Phosphorus 0.040 0.040 0.040 0.040 0.04 0.040 0.040 0.04 0.060 0.03 0.045 0.040 0.04 0.030
max
Chromium 13.0– 15.0– 19.0– 20.0– 24.5– 22.5– 20.50– 18.0– 16.0– 19.0– 19.5– 23.0– 18.0– 24.0–
17.0 18.0 22.0 22.0 26.5 25.5 23.50 21.0 18.0 21.0 20.5 26.0 21.0 26.0
Nickel 33.0–
37.0
13.0–
16.0
27.5–
30.5
23.5–
25.5
4.75–
6.00
8.0–
11.0
11.50–
13.50
9.0–
13.0
8.0–
9.0
31.0–
34.0
17.5–
19.5
8.0–
11.0
9.0–
13.0
6.5–
8.5
Molybde- 0.50 1.75– 2.0– 6.0– 1.75– 3.0– 1.50– 3.0– . . . . . . 6.0– 0.50 3.0– 3.0–
num 2.25 3.0 7.0 2.25 4.5 3.00 4.0 7.0 4.0 4.0
Columbium . . . C . . . . . . . . . . . . 0.10– . . . . . . 0.50– . . . . . . . . . . . .
(niobium) 0.30 1.50
Vanadium . . . . . . . . . . . . . . . . . . 0.10– . . . . . . . . . . . . . . . . . . . . .
0.30
Nitrogen . . . . . . . . . 0.18– . . . 0.10– 0.20– . . . 0.08– . . . 0.18– 0.08– . . . 0.20–
0.26 0.30 0.40 0.18 0.24 0.20 0.30
Copper . . . . . . 3.0–
4.0
0.75
max
2.75–
3.25
. . . . . . . . . . . . . . . 0.50–
1.00
. . . . . . 0.5–
1.0
Tungsten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5–
1.0
Iron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bal . . . . . .
A Grade CF8C shall have a columbium content of not less than 8 times the carbon content but not over 1.00 %.
B % Cr + 3.3 % Mo + 16 % N $ 40.
C Grade CF10MC shall have a columbium content of not less than 10 times the carbon content but not over 1.20 %.
A 351/A 351M – 03
3
Qingdao Casting Quality Industrial Co., Limited http://www.castingquality.com
SUPPLEMENTARY REQUIREMENTS
The following supplementary requirements shall not apply unless specified in the purchase order. A
list of standardized supplementary requirements for use at the option of the purchaser is included in
Specification A 703/A 703M. Those which are ordinarily considered suitable for use with this
specification are given below. Others enumerated in Specification A 703/A 703M may be used with
this specification upon agreement between the manufacturer and purchaser.
S2. Destruction Tests
S5. Radiographic Inspection
S6. Liquid Penetrant Inspection
S10. Examination of Weld Preparation
S10.1 The method of performing the magnetic particle or
liquid penetrant test shall be in accordance with Practice E 165
or Practice E 709.
S11. Post Weld Heat Treatment
S11.1 All austenitic castings, except Grades HK, HT, and
CT15C, which have been subjected to weld repairs, shall be
given a post weld solution heat treatment.
TABLE 3 Tensile Requirements
CF3
J92700
CF3A
J92700
CF8
J92600
CF8A
J92600
CF3M
J92800
CF-
3MA
J92800
CF8M
J92900
CF-
3MN
J92804
CF8C
J92710
CF10
J92950
CF10M
J92901
CH8
J93400
CH10
J93401
CH20
J93402
CK20
J94202
HK30
J94203
HK40
J94204
Tensile strength, 70 77 70 77 70 80 70 75 70 70 70 65 70 70 65 65 62
min, ksi [MPa] [485] [530] [485] [530] [485] [550] [485] [515] [485] [485] [485] [450] [485] [485] [450] [450] [425]
Yield strength,A 30 35 30 35 30 37 30 37 30 30 30 28 30 30 28 35 35
min, ksi [MPa] [205] [240] [205] [240] [205] [255] [205] [255] [205] [205] [205] [195] [205] [205] [195] [240] [240]
Elongation in
2 in. or
50 mm,B
min, %
35.0 35.0 35.0 35.0 30.0 30.0 30.0 35.0 30.0 35.0 30.0 30.0 30.0 30.0 30.0 10.0 10.0
Reduction of
area, min,%
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HT30
N08030
CF-
10MC
CN7M
N08007
CN-
3MN
J94651
CD-
4MCu
J93370
CE-
8MN
CG
6MMN
J93790
CG8M
J93000
CF10SMnN
J92972
CT15C
N08151
CK-
3MCuN
J93254
CE20N
J92802
CG3M
J92999
CD3MWCuN
J93380
Tensile strength, 65 70 62 80 100 95 85 75 85 63 80 80 75 100
min, ksi [MPa] [450] [485] [425] [550] [690] [655] [585] [515] [585] [435] [550] [550] 515
Yield strength,A 28 30 25 38 70 65 42.5 35 42.5 25 38 40 35 65
min, ksi [MPa] [195] [205] [170] [260] [485] [450] [295] [240] [295] [170] [260] [275] 240
Elongation in
2 in. or
50 mm,B
min, %
15.0 20.0 35.0 35 16.0 25.0 30.0 25.0 30.0 20.0 35 30.0 25 25.0
Reduction of
area, min,%
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Determine by the 0.2 % offset method.
B When ICI test bars are used in tensile testing as provided for in Specification A 703/A 703M, the gage length to reduced section diameter ratio shall be 4 to 1.
A 351/A 351M – 03
4
Qingdao Casting Quality Industrial Co., Limited http://www.castingquality.com
SUMMARY OF CHANGES
Committee A01 has identified the location of selected changes to this standard since the last issue (A 351/
A 351M – 00) that may impact the use of this standard.
(1) UNS numbers were added to Table 2 and Table 3.
(www.astm.org).
A 351/A 351M – 03

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
Mobile No. 0091 – 9820292499
Email – marketing@rolexmetals.com

ROLEX METAL DISTRIBUTORS
57-A Khatargalli
Thakurdwar
Mumbai – 400 002 India
0091-22-23858802
0091-22-23823963
0091-22-23898724
marketing@rolexmetals.com
www.rolexmetals.com

CHAIRMAN – chairman@rolexmetals.com
MANAGING DIRECTOR – managingdirector@rolexmetals.com
TECHNICAL DIRECTOR – technicaldirector@rolexmetals.com
SALES DIRECTOR – salesdirector@rolexmetals.com
COMMERCIAL DIRECTOR – commercialdirector@rolexmetals.com
COMMERCIAL MANAGER – commercial@rolexmetals.com
GENERAL MANAGER – generalmanager@rolexmetals.com
SALES MANAGER – salesmanager@rolexmetals.com
PURCHASE MANAGER – purchasemanager@rolexmetals.com
TECHNICAL MANAGER – technical@rolexmetals.com
WORKS MANAGER – worksmanager@rolexmetals.com
STORES MANAGER – stores@rolexmetals.com
WAREHOUSE MANAGER – warehouse@rolexmetals.com
SALES DOMESTIC – salesdomestic@rolexmetals.com
SALES INTERNATIONAL – salesinternational@rolexmetals.com
SALES GENERAL – sales@rolexmetals.com
PURCHASE GENERAL – purchase@rolexmetals.com
FINANCE MANAGER – finance@rolexmetals.com
ACCOUNTS MANAGER – accounts@rolexmetals.com
GENERAL INFORMATION – info@rolexmetals.com
EXPORT MANAGER – export@rolexmetals.com
IMPORT MANAGER – import@rolexmetals.com
AIR EXPORT – airexport@rolexmetals.com
SEA EXPORT – seaexport@rolexmetals.com
CUSTOMS – customs@rolexmetals.com
AIR FREIGHT – airfreight@rolexmetals.com
SEA FREIGHT – seafreight@rolexmetals.com
DESPATCH – despatch@rolexmetals.com
INSPECTION – inspection@rolexmetals.com
LOGISTICS – logistics@rolexmetals.com
TRANSPORT – transport@rolexmetals.com
KALAMBOLI WAREHOUSE – kalamboli@rolexmetals.com
TALOJA WAREHOUSE – taloja@rolexmetals.com
KHOPOLI WAREHOUSE – khopoli@rolexmetals.com
NHAVA SHEVA WAREHOUSE – nhavasheva@rolexmetals.com
KANDLA WAREHOUSE – kandla@rolexmetals.com
MUMBAI WAREHOUSE – mumbai@rolexmetals.com
STOCKYARD – stockyard@rolexmetals.com
SERVICE – service@rolexmetals.com
SUPPORT – support@rolexmetals.com
RECRUITMENT – career@rolexmetals.com
WEBMASTER – webmaster@rolexmetals.com
CUSTOMER CARE – customercare@rolexmetals.com