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This specification covers carbon and low-alloy steel and cobalt alloy castings made by the investment casting process. Fifteen grades of steel and two cobalt alloy grades are covered. Steel castings shall be heat treated either by full annealing, normalizing, normalizing and tempering, or quenching and tempering to obtain the specified properties or other properties that have been agreed upon within each grade. The castings shall conform to the requirements for chemical composition specified.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers carbon and low-alloy steel and cobalt alloy castings made by the investment casting process.
1.2 Fifteen grades of steel and two cobalt alloy grades are covered.
1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.
1.4 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A957/A957M Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A997 Practice for Investment Castings, Surface Acceptance Standards, Visual Examination
E21 Test Methods for Elevated Temperature Tension Tests of Metallic Materials
E139 Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials
ICS Number Code 77.140.80 (Iron and steel castings)