ASTM A494/A494M-15
(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 −15
Standard Specification 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 U.S. Department of Defense.
1. Scope* E38Methods for Chemical Analysis of Nickel-Chromium
3
and Nickel-Chromium-Iron Alloys (Withdrawn 1989)
1.1 This specification covers nickel, nickel-copper, nickel-
E76Test Methods for Chemical Analysis of Nickel-Copper
copper-silicon, nickel-molybdenum, nickel-chromium, and
3
Alloys (Withdrawn 2003)
nickel-molybdenum-chromium alloy castings for corrosion-
E354 Test Methods for Chemical Analysis of High-
resistant service.
Temperature,Electrical,Magnetic,andOtherSimilarIron,
1.2 The values stated in either SI units or inch-pound units
Nickel, and Cobalt Alloys
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
3. Terminology
system shall be used independently of the other. Combining
3.1 Definitions:
values from the two systems may result in non-conformance
3.1.1 master heat—a single furnace charge of refined alloy,
with the standard.
whichmayeitherbepoureddirectlyintocastingsorintoremelt
2. Referenced Documents alloy for individual melts.
2
3.1.2 melts—a single furnace charge poured into castings.
2.1 ASTM Standards:
When master heats are used to prepare melts, a melt analysis
A370Test Methods and Definitions for Mechanical Testing
shall be reported.
of Steel Products
A488/A488MPractice for Steel Castings, Welding, Qualifi-
cations of Procedures and Personnel 4. General Conditions for Delivery
A732/A732MSpecification for Castings, Investment, Car-
4.1 Except for investment castings, castings furnished to
bon and Low Alloy Steel for General Application, and
this specification shall conform to the requirements of Speci-
Cobalt Alloy for High Strength at Elevated Temperatures
fication A781/A781M, including any supplementary require-
A781/A781MSpecification for Castings, Steel and Alloy,
ments that are indicated on the purchase order. Failure to
Common Requirements, for General Industrial Use
comply with the general requirements of Specification A781/
A957/A957MSpecification for Investment Castings, Steel
A781M constitutes nonconformance with this specification. In
andAlloy, Common Requirements, for General Industrial
case of conflict between the requirements of this specification
Use
and Specification A781/A781M, this specification shall pre-
E8Test Methods for Tension Testing of Metallic Materials
vail.
E29Practice for Using Significant Digits in Test Data to
4.2 Investment castings furnished to this specification shall
Determine Conformance with Specifications
conform to the requirements of Specification A957/A957M,
E30TestMethodsforChemicalAnalysisofSteel,CastIron,
3
includinganysupplementaryrequirementsthatareindicatedin
Open-Hearth Iron, and Wrought Iron (Withdrawn 1995)
the purchase order. Failure to comply with the general require-
ments of Specification A957/A957M constitutes nonconfor-
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
mance with this specification. In case of conflict between the
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
requirements of this specification and Specification A957/
A01.18 on Castings.
A957M, Specification A957/A957M shall prevail.
Current edition approved May 1, 2015. Published May 2015. Originally
approved in 1963. Last previous edition approved in 2014 as A494/A494M–14a.
DOI: 10.1520/A0494_A0494M-15.
5. Ordering Information
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
5.1 Orders for castings to this specification should include
Standards volume information, refer to the standard’s Document Summary page on
the following information:
the ASTM website.
3 5.1.1 Quantity, in pieces, and
The last approved version of this historical standard is referenced on
www.astm.org. 5.1.2 Grade designation (Table 1) and class (Table 2).
*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−15
2
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 CW
...
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.
Designation: A494/A494M − 14a A494/A494M − 15
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 U.S. Department of Defense.
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
A957/A957M Specification for Investment 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 Except for investment castings, castings furnished to this specification shall conform to the requirements of Specification
A781/A781M, including any supplementary requirements that are indicated on 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 Oct. 1, 2014May 1, 2015. Published November 2014May 2015. Originally approved in 1963. Last previous edition approved in 2014 as
A494/A494M – 14.A494/A494M – 14a. DOI: 10.1520/A0494_A0494M-14A.10.1520/A0494_A0494M-15.
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 − 15
4.2 Investment castings furnished to this specification shall conform to the requirements of Specification A957/A957M,
including any supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements
of Specification A957/A957M constitutes nonconformance with this specification. In case of conflict between the requirements of
this specification and Specification A957/A957M, Specification A957/A957M shall pr
...
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