ASTM A494/A494M-00

Standard Specification for Castings, Nickel and Nickel Alloy

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 A494 and SI units for material ordered to Specification A494M.

General Information

• Status: Historical
• Publication Date: 09-Sep-2001
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.18 - Castings

Relations

• Replaced By: ASTM A494/A494M-01 - Standard Specification for Castings, Nickel and Nickel Alloy
• Effective Date: 10-Sep-2001
• 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: 10-Sep-2001
• Referred By: ASTM A957/A957M-21 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
• Effective Date: 10-Sep-2001
• Referred By: ASTM A744/A744M-21a - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
• Effective Date: 10-Sep-2001
• Referred By: ASTM A488/A488M-18e2 - Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
• Effective Date: 10-Sep-2001
• Referred By: ASTM F998-12(2022) - Standard Specification for Centrifugal Pump, Shipboard Use
• Effective Date: 10-Sep-2001
• Referred By: ASTM F1508-96(2021) - Standard Specification for Angle Style, Pressure Relief Valves for Steam, Gas, and Liquid Services
• Effective Date: 10-Sep-2001
• Referred By: ASTM A743/A743M-21 - Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
• Effective Date: 10-Sep-2001
• Referred By: ASTM F1511-18(2023) - Standard Specification for Mechanical Seals for Shipboard Pump Applications
• Effective Date: 10-Sep-2001
• Referred By: ASTM A781/A781M-21 - Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
• Effective Date: 10-Sep-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 494/A494M – 00 An American National Standard
Standard Specification for
1
Castings, Nickel and Nickel Alloy
This standard is issued under the fixed designation A 494/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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 354 Test Methods for Chemical Analysis of High-
Temperature, Electrical, Magnetic, and Other Similar Iron,
1.1 This specification covers nickel, nickel-copper, nickel-
6
Nickel, and Cobalt Alloys
copper-silicon, nickel-molybdenum, nickel-chromium, and
8
2.2 Military Standards:
nickel-molybdenum-chromium alloy castings for corrosion-
NAVSEA T9074–AS-GIB-010/271 Requirements for Non-
resistant service.
destructive Testing Methods
1.2 The values stated in either inch-pound units or SI units
NAVSEA S9074–AR-GIB-010/2718 Requirements for Fab-
are to be regarded separately as standard. Within the text, the
rication Welding and Inspection, and Casting Inspection
SI units are shown in brackets. The values stated in each
and Repair for Machinery, Piping, and Pressure Vessels
system are not exact equivalents; therefore, each system must
be used independently of the other. Combining values from the
3. Terminology
two systems may result in nonconformance with the specifi-
3.1 Definitions:
cation. Inch-pound units are applicable for material ordered to
3.1.1 master heat—a single furnace charge of refined alloy
Specification A 494 and SI units for material ordered to
which may either be poured directly into castings or into remelt
Specification A 494M.
alloy for individual melts.
2. Referenced Documents 3.1.2 melts—a single furnace charge poured into castings.
When master heats are used to prepare melts, a melt analysis
2.1 ASTM Standards:
shall be reported.
A 370 Test Methods and Definitions for Mechanical Testing
2
of Steel Products
4. General Conditions for Delivery
A 488/A488M Practice for Steel Castings, Welding, Quali-
3
4.1 Material furnished to this specification shall conform to
fications of Procedures and Personnel
the requirements of Specification A 781/A 781M, including
A 732/A732M Specification for Castings, Investment, Car-
any supplementary requirements that are indicated in the
bon and Low–Alloy Steel for General Application, and
3 purchase order. Failure to comply with the general require-
Cobalt Alloy for High Strength at Elevated Temperatures
ments of Specification A 781/A 781M constitutes nonconfor-
A 781/A781M Specification for Castings, Steel and Alloy,
3 mance with this specification. In case of conflict between the
Common Requirements, for General Industrial Use
4
requirements of this specification and Specification A 781/
E 8 Test Methods for Tension Testing of Metallic Materials
A 781M, this specification shall prevail.
E 29 Practice for Using Significant Digits in Test Data to
5
Determine Conformance with Specifications
5. Ordering Information
E 30 Test Methods for Chemical Analysis of Steel, Cast
6 5.1 Orders for castings to this specification should include
Iron, Open-Hearth Iron, and Wrought Iron
the following information:
E 38 Methods for Chemical Analysis of Nickel-Chromium
7 5.1.1 Quantity, in pieces, and
and Nickel-Chromium-Iron Alloys
5.1.2 Grade designation (Table 1) and class (Table 2).
E 76 Test Methods for Chemical Analysis of Nickel-Copper
6 5.2 The purchaser shall specify any of the following infor-
Alloys
mation required to describe adequately the desired material:
5.2.1 Heat treat condition (see 6.1 and 6.2),
1
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
5.2.2 Repair welding (see 11)
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.18 on Castings. 5.2.3 Source inspection requirements, if any (see Specifica-
Current edition approved Mar. 10, 2000. Published May 2000. Originally
tion A 781/A 781M),
published as B 332 – 58 T. Redesignated as A 494 in 1963. Last previous edition
5.2.4 Marking-for-identification requirements, if any (see
A 494/A 494M – 99.
2
13.1), and
Annual Book of ASTM Standards, Vol 01.03.
3
Annual Book of ASTM Standards, Vol 01.02.
5.2.5 Supplementary requirements desired, including the
4
Annual Book of ASTM Standards, Vol 03.01.
5
Annual Book of ASTM Standards, Vol 14.02.
6 8
Annual Book of ASTM Standards, Vol 03.05. Available from DODSSP, Building 4/Section D, 700 Robbins Avenue Phila-
7
Discontinued, see 1989 Annual Book of ASTM Standards, Vol 03.05. delphia, PA 19111–5098
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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A 494/A494M
TABLE 1 Chemical Requirem
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