ASTM A494/A494M-12
(Specification)Standard Specification for Castings, Nickel and Nickel Alloy
Standard Specification for Castings, Nickel and Nickel Alloy
ABSTRACT
This specification covers nickel, nickel-copper, nickel-copper-silicon, nickel-molybdenum, nickel-chromium, and nickel-molybdenum-chromium alloy castings for corrosion resistant service. The castings shall be heat treated. When Class 1 is specified, grades CY40 and M25S shall be supplied in the as-cast condition. When Class 2 is specified, grades CY40 and M25S shall be supplied in the solution treated condition. When Class 3 is specified, grade M25S shall be supplied in the age-hardened condition. The chemical composition requirements of the alloys are presented. The tensile property requirements including the heat treatment procedure for the castings are presented in detail. It is required that one tension test shall be made from each master heat except for grades M25S and CY5SnBiM when the master heat is used to pour the castings. One tension test shall be made from each melt except for grades M25S and CY5SnBiM. Test results shall conform to the specified tensile requirements.
SCOPE
1.1 This specification covers nickel, nickel-copper, nickel-copper-silicon, nickel-molybdenum, nickel-chromium, and nickel-molybdenum-chromium alloy castings for corrosion-resistant service.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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Designation:A494/A494M −12
StandardSpecification for
1
Castings, Nickel and Nickel Alloy
This standard is issued under the fixed designationA494/A494M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* E76Test Methods for Chemical Analysis of Nickel-Copper
3
Alloys (Withdrawn 2003)
1.1 This specification covers nickel, nickel-copper, nickel-
E354 Test Methods for Chemical Analysis of High-
copper-silicon, nickel-molybdenum, nickel-chromium, and
Temperature,Electrical,Magnetic,andOtherSimilarIron,
nickel-molybdenum-chromium alloy castings for corrosion-
Nickel, and Cobalt Alloys
resistant service.
1.2 The values stated in either SI units or inch-pound units
3. Terminology
are to be regarded separately as standard. The values stated in
3.1 Definitions:
each system may not be exact equivalents; therefore, each
3.1.1 master heat—a single furnace charge of refined alloy,
system shall be used independently of the other. Combining
whichmayeitherbepoureddirectlyintocastingsorintoremelt
values from the two systems may result in non-conformance
alloy for individual melts.
with the standard.
3.1.2 melts—a single furnace charge poured into castings.
2. Referenced Documents
When master heats are used to prepare melts, a melt analysis
2
shall be reported.
2.1 ASTM Standards:
A370Test Methods and Definitions for Mechanical Testing
4. General Conditions for Delivery
of Steel Products
A488/A488MPractice for Steel Castings, Welding, Qualifi-
4.1 Material furnished to this specification shall conform to
cations of Procedures and Personnel
the requirements of Specification A781/A781M, including any
A732/A732MSpecification for Castings, Investment, Car-
supplementary requirements that are indicated in the purchase
bon and Low Alloy Steel for General Application, and
order. Failure to comply with the general requirements of
Cobalt Alloy for High Strength at Elevated Temperatures
Specification A781/A781M constitutes nonconformance with
A781/A781MSpecification for Castings, Steel and Alloy,
this specification. In case of conflict between the requirements
Common Requirements, for General Industrial Use
of this specification and Specification A781/A781M, this
E8Test Methods for Tension Testing of Metallic Materials
specification shall prevail.
E29Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
5. Ordering Information
E30TestMethodsforChemicalAnalysisofSteel,CastIron,
3
5.1 Orders for castings to this specification should include
Open-Hearth Iron, and Wrought Iron (Withdrawn 1995)
the following information:
E38Methods for Chemical Analysis of Nickel-Chromium
3
5.1.1 Quantity, in pieces, and
and Nickel-Chromium-Iron Alloys (Withdrawn 1989)
5.1.2 Grade designation (Table 1) and class (Table 2).
5.2 The purchaser shall specify any of the following infor-
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
mation required to describe adequately the desired material:
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
5.2.1 Heat-treat condition (see 6.1 and 6.2),
A01.18 on Castings.
Current edition approved Sept. 1, 2012. Published October 2012. Originally 5.2.2 Repair welding (see Section 11)
approved in 1963. Last previous edition approved in 2009 as A494/A494M–09.
5.2.3 Source inspection requirements, if any (see Specifica-
DOI: 10.1520/A0494_A0494M-12.
tion A781/A781M),
2
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
5.2.4 Marking-for-identification requirements, if any (see
Standards volume information, refer to the standard’s Document Summary page on
13.1), and
the ASTM website.
3
5.2.5 Supplementary requirements desired, including the
The last approved version of this historical standard is referenced on
www.astm.org. standards of acceptance.
*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
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A494/A494M−12
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TABLE 1 Chemical Requirements
NOTE 1—Values are maximum unless otherwise indicated.
Alloy Ni Ni-Cu Ni-Mo Ni-Cr Other
Family
A A
Grade CZ100 M25S M30C M30H M35-1 M35-2 N3M N7M N12MV CU5MCuC CW2M CW6M CW6MC CW12MW CX2M CX2MW CY40 CY5SnBiM
UNS N02100 N24025 N24130 N24030 N24135 N24020 J30003 J30007 N30012 N08826 N26455 N30107 N26625 N30002 N26059 N26022 N06040 N26055
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: A494/A494M − 09 A494/A494M − 12
Standard Specification for
1
Castings, Nickel and Nickel Alloy
This standard is issued under the fixed designation A494/A494M; 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 («) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1
εNOTE—Table 1 was editorially corrected in February 2010.
1. Scope*
1.1 This specification covers nickel, nickel-copper, nickel-copper-silicon, nickel-molybdenum, nickel-chromium, and nickel-
molybdenum-chromium alloy castings for corrosion-resistant service.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A488/A488M Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
A732/A732M Specification for Castings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy
for High Strength at Elevated Temperatures
A781/A781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
E30 Test Methods for Chemical Analysis of Steel, Cast Iron, Open-Hearth Iron, and Wrought Iron (Withdrawn 1995)
3
E38 Methods for Chemical Analysis of Nickel-Chromium and Nickel-Chromium-Iron Alloys (Withdrawn 1989)
3
E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)
E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and
Cobalt Alloys
3. Terminology
3.1 Definitions:
3.1.1 master heat—a single furnace charge of refined alloy, which may either be poured directly into castings or into remelt alloy
for individual melts.
3.1.2 melts—a single furnace charge poured into castings. When master heats are used to prepare melts, a melt analysis shall
be reported.
4. General Conditions for Delivery
4.1 Material furnished to this specification shall conform to the requirements of Specification A781/A781M, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements of
Specification A781/A781M constitutes nonconformance with this specification. In case of conflict between the requirements of this
specification and Specification A781/A781M, this specification shall prevail.
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 1, 2009Sept. 1, 2012. Published May 2009October 2012. Originally approved in 1963. Last previous edition approved in 20082009 as
A494/A494M – 08.A494/A494M – 09. DOI: 10.1520/A0494_A0494M-09.10.1520/A0494_A0494M-12.
2
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
*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
1
---------------------- Page: 1 ----------------------
A494/A494M − 12
5. Ordering Information
5.1 Orders for castings to this specification should include the following information:
5.1.1 Quantity, in pieces, and
5.1.2 Grade designation (Table 1) and class (Table 2).
5.2 The purchaser shall specify any of the following information required to describe adequately the desired material:
5.2.1 Heat-treat condition (see 6.1 and 6.2),
5.2.2 Repair welding (see Section 11)
5.2.3 Source inspection requirements, if any (see Specification A781/A781M),
5.2.4 Marking-for-identification requirements, if any (see 13.1)
...
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