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1.1 This specification covers iron-chromium and iron-chromium-nickel alloy castings for heat-resistant service. The grades covered by this specification are general purpose alloys and no attempt has been made to include heat-resisting alloys used for special production application.
Note 1—For heat-resisting alloys used for special product application, reference should be made to Specification A 351
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A217/A217M Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service
A351/A351M Specification for Castings, Austenitic, for Pressure-Containing Parts
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A447/A447M Specification for Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service
A781/A781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A957 Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
ICS Number Code 77.140.80 (Iron and steel castings)