Standard Specification for Castings, Nickel-Aluminum Ordered Alloy

ABSTRACT
This specification covers nickel-aluminum ordered alloy castings intended for heat-resisting and elevated-temperature applications such as heat-resistant alloy structural members, containers, supports, hangers, spacers, and so forth. The alloy for the castings shall be processed by any method and shall undergo heat treatment. The castings shall conform to the required chemical composition for carbon, sulfur, aluminum, chromium, molybdenum, zirconium, boron, silicon, iron, and nickel. Retests of a duplicate specimen shall be allowed if the elongation of any tension test specimen is less than specific requirement.
SCOPE
1.1 This specification covers nickel-aluminum ordered alloy castings intended for heat-resisting and elevated-temperature applications such as heat-resistant alloy structural members, containers, supports, hangers, spacers, and so forth, in environments up to 2300°F (1260°C).
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 this specification.

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30-Sep-2003
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ASTM A1002-99(2003) - Standard Specification for Castings, Nickel-Aluminum Ordered Alloy
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A1002 – 99 (Reapproved 2003)
Standard Specification for
Castings, Nickel-Aluminum Ordered Alloy
This standard is issued under the fixed designation A1002; 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.
1. Scope 5. Materials and Manufacture
1.1 This specification covers nickel-aluminum ordered alloy 5.1 Process—The alloy for the castings shall be by any
castings intended for heat-resisting and elevated-temperature method unless otherwise agreed upon between the manufac-
applications such as heat-resistant alloy structural members, turer and the purchaser. Casting may be poured in sand, shell,
containers, supports, hangers, spacers, and so forth, in envi- investment, or centrifugal molds.
ronments up to 2300°F (1260°C). 5.2 HeatTreatment—Castingsmaybeshippedintheas-cast
1.2 The values stated in either inch-pound units or SI units condition. If heat treatment is required the treatment shall be
are to be regarded separately as standard. Within the text, the established by mutual consent between the manufacturer and
SI units are shown in brackets. The values stated in each the purchaser and shall be so specified in the inquiry, purchase
system are not exact equivalents; therefore, each system must order, or contract.
be used independently of the other. Combining values from the
6. Chemical Composition
two systems may result in nonconformance with this specifi-
cation. 6.1 The castings shall conform to the requirements as to
chemical composition prescribed in Table 1.
2. Referenced Documents
2 7. Mechanical Properties
2.1 ASTM Standards:
7.1 Mechanical properties are not required unless specified
A370 Test Methods and Definitions for Mechanical Testing
of Steel Products in the purchase order.
7.2 Tensile properties, if required, of the alloy used for the
A781/A781M Specification for Castings, Steel and Alloy,
Common Requirements, for General Industrial Use castings shall conform to the requirements prescribed in the
purchase order.
3. General Conditions for Delivery
7.3 Impact properties, if required, of the alloy used for the
3.1 Material furnished to this specification shall conform to castings shall conform to the requirements prescribed in the
the requirements of SpecificationA781/A781M, including any purchase order.
supplementary requirements that are indicated in the purchase
8. Test Specimens
order. Failure to comply with the general requirements of
Specification A781/A781M constitutes nonconformance with 8.1 Test specimens, if required, shall be prepared in accor-
dance with Test Methods and DefinitionsA370. Test bars shall
this specification. In case of conflict between the requirements
of this specification and Specification A781/A781M, this be poured in special blocks from the same heat as the castings
represented. Test bars, if required, shall be furnished in
specification shall prevail.
sufficient number to furnish specimens for the tests required in
4. Ordering Information
Section 9.
4.1 The purchaser should specify the alloy grade desired 8.2 The test coupons shall be cast from the same melt from
and whether tension or impact tests are required, and shall which the castings they represent are poured, and shall repre-
include standards of acceptance where necessary. sent the full melting practice. Chemical composition of the test
coupons shall conform to the requirements prescribed in Table
1.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
8.3 Tension test specimens shall be machined to the form
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
and dimensions of the standard 2-in. [50-mm] gage length
A01.18 on Castings.
Current edition approved Oct. 1, 2003. Published October 2003. Originally
specimen shown in
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