ASTM A494/A494M-07

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 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. Inch-pound units are applicable for material ordered to Specification A 494 and SI units for material ordered to Specification A 494M.

General Information

• Status: Historical
• Publication Date: 30-Apr-2007
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.18 - Castings

Relations

• Replaces: ASTM A494/A494M-05 - Standard Specification for Castings, Nickel and Nickel Alloy
• Effective Date: 01-May-2007
• Replaced By: ASTM A494/A494M-08 - Standard Specification for Castings, Nickel and Nickel Alloy
• Effective Date: 01-Oct-2008
• Referred By: ASTM A744/A744M-21a - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
• Effective Date: 01-May-2007
• Referred By: ASTM A488/A488M-18e2 - Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
• Effective Date: 01-May-2007
• Referred By: ASTM A990/A990M-21 - Standard Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure-Retaining Parts for Corrosive Service
• Effective Date: 01-May-2007
• Referred By: ASTM A957/A957M-21 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
• Effective Date: 01-May-2007
• Referred By: ASTM F998-12(2022) - Standard Specification for Centrifugal Pump, Shipboard Use
• Effective Date: 01-May-2007
• Referred By: ASTM A781/A781M-21 - Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
• Effective Date: 01-May-2007
• Referred By: ASTM F1511-18(2023) - Standard Specification for Mechanical Seals for Shipboard Pump Applications
• Effective Date: 01-May-2007
• Referred By: ASTM F1508-96(2021) - Standard Specification for Angle Style, Pressure Relief Valves for Steam, Gas, and Liquid Services
• Effective Date: 01-May-2007
• Referred By: ASTM A743/A743M-21 - Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
• Effective Date: 01-May-2007

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 494/A 494M – 07
Standard Specification for
1
Castings, Nickel and Nickel Alloy
This standard is issued under the fixed designationA 494/A 494M; 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.
3
1. Scope* Iron, Open-Hearth Iron, and Wrought Iron
E38 Methods for Chemical Analysis of Nickel-Chromium
1.1 This specification covers nickel, nickel-copper, nickel-
3
and Nickel-Chromium-Iron Alloys
copper-silicon, nickel-molybdenum, nickel-chromium, and
E76 Test Methods for ChemicalAnalysis of Nickel-Copper
nickel-molybdenum-chromium alloy castings for corrosion-
3
Alloys
resistant service.
E 354 Test Methods for Chemical Analysis of High-
1.2 The values stated in either inch-pound units or SI units
Temperature, Electrical, Magnetic, and Other Similar Iron,
are to be regarded separately as standard. Within the text, the
Nickel, and Cobalt Alloys
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system must
3. Terminology
be used independently of the other. Combining values from the
3.1 Definitions:
two systems may result in nonconformance with the specifi-
3.1.1 master heat—a single furnace charge of refined alloy,
cation. Inch-pound units are applicable for material ordered to
whichmayeitherbepoureddirectlyintocastingsorintoremelt
Specification A 494 and SI units for material ordered to
alloy for individual melts.
Specification A 494M.
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:
A 370 Test Methods and Definitions for MechanicalTesting
4. General Conditions for Delivery
of Steel Products
4.1 Material furnished to this specification shall conform to
A 488/A 488M Practice for Steel Castings, Welding, Quali-
the requirements of Specification A 781/A 781M, including
fications of Procedures and Personnel
any supplementary requirements that are indicated in the
A 732/A 732M Specification for Castings, Investment, Car-
purchase order. Failure to comply with the general require-
bon and Low Alloy Steel for General Application, and
ments of Specification A 781/A 781M constitutes nonconfor-
Cobalt Alloy for High Strength at Elevated Temperatures
mance with this specification. In case of conflict between the
A 781/A 781M Specification for Castings, Steel and Alloy,
requirements of this specification and Specification A 781/
Common Requirements, for General Industrial Use
A 781M, this specification shall prevail.
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to
5. Ordering Information
Determine Conformance with Specifications
5.1 Orders for castings to this specification should include
E30 Test Methods for Chemical Analysis of Steel, Cast
the following information:
5.1.1 Quantity, in pieces, and
1 5.1.2 Grade designation (Table 1) and class (Table 2).
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
5.2 The purchaser shall specify any of the following infor-
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.18 on Castings.
mation required to describe adequately the desired material:
Current edition approved May 1, 2007. Published May 2007. Originally
5.2.1 Heat-treat condition (see 6.1 and 6.2),
approved in 1963. Last previous edition approved in 2005 as A 494/A 494M – 05.
2
5.2.2 Repair welding (see Section 11)
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
3
the ASTM website. Withdrawn.
*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 ----------------------
A 494/A 494M – 07
2
TABLE 1 Chemical Requirements
NOTE—Values are maximum unless otherwise indicated.
A A
Grade CZ100 M35-1 M35-2 M30H M25S M30C N12MV N7M N3M CY40 CW12MW CW6M CW2M CW6MC CY5SnBiM CX2MW CU5MCuC CX2M
UNS N02100 N24135 N04020 N24030 N24025 N24130 N30012 N30007 J30003 N06040 N30002 N30107 N26455 N26625 N26055 N26022 N08826 N26059
Numbers
Composition, %
C, max 1.00 0.35 0.35 0.30 0.25 0.30 0.12 0.07 0.03 0.40 0.12 0.07 0.02 0.06 0.05 0.02 0.050 0.02
max
Mn, max 1.50 1.50 1.50 1.50 1.50 1.50 1.00 1.00 1.00 1.50
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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–05 Designation: A 494/A 494M – 07
Standard Specification for
1
Castings, Nickel and Nickel Alloy
This standard is issued under the fixed designationA 494/A 494M; 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. 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 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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.
Inch-pound units are applicable for material ordered to Specification A 494 and SI units for material ordered to Specification
A 494M.
2. Referenced Documents
2
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 488/A 488M Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
A 732/A 732M Specification for Castings, Investment, Carbon and Low-AlloyLow Alloy Steel for General Application, and
Cobalt Alloy for High Strength at Elevated Temperatures
A 781/A 781M 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
3
E38 Methods for Chemical Analysis of Nickel-Chromium and Nickel-Chromium-Iron Alloys
3
E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys
E 354 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 A 781/A 781M, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements of
Specification A 781/A 781M constitutes nonconformance with this specification. In case of conflict between the requirements of
this specification and Specification A 781/A 781M, this specification shall prevail.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel,Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.18 on Castings.
CurrenteditionapprovedSeptember1,2005.PublishedOctober2005.Originallyapprovedin1958.RedesignatedasA494in1963.Lastpreviouseditionapprovedin2004
as A494/A494M–04.
Current edition approved May 1, 2007. Published May 2007. Originally approved in 1963. Last previous edition approved in 2005 as A 494/A 494M – 05.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
*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 ----------------------
A 494/A 494M – 07
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
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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–05 Designation: A 494/A 494M – 07
Standard Specification for
1
Castings, Nickel and Nickel Alloy
This standard is issued under the fixed designationA 494/A 494M; 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.
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 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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.
Inch-pound units are applicable for material ordered to Specification A 494 and SI units for material ordered to Specification
A 494M.
2. Referenced Documents
2
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 488/A 488M Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
A 732/A 732M Specification for Castings, Investment, Carbon and Low-AlloyLow Alloy Steel for General Application, and
Cobalt Alloy for High Strength at Elevated Temperatures
A 781/A 781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
E 8 Test Methods for Tension Testing of Metallic Materials
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
E 30 Test Methods for Chemical Analysis of Steel, Cast Iron, Open-Hearth Iron, and Wrought Iron
3
E 38 Methods for Chemical Analysis of Nickel-Chromium and Nickel-Chromium-Iron Alloys
3
E 76 Test Methods for Chemical Analysis of Nickel-Copper Alloys
E 354 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 A 781/A 781M, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements of
Specification A 781/A 781M constitutes nonconformance with this specification. In case of conflict between the requirements of
this specification and Specification A 781/A 781M, this specification shall prevail.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel,Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.18 on Castings.
Current edition approved SeptemberMay 1, 2005.2007. Published October 2005.May 2007. Originally approved in 1958. Redesignated as A494 in 1963. Last previous
edition approved in 20042005 as A 494/A 494M – 045.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
*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 ----------------------
A 494/A 494M – 07
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 A 781/A 781M),
5.2.4 Marking-for-identification requirements, if any (see 13.1), and
5.2.5 Sup
...