This specification covers stainless steel bars for compressor and turbine bucket, blade, and airfoil applications. Materials shall be produced by basic electric furnace melting process with argon-oxygen-decarburization refining or by vacuum ladle degassing. Electro-slag remelting shall also be conducted unless otherwise specified by the purchaser. Two complete heat treatments, consisting of an austenize, quench, and temper, shall be conducted. Straightening, stress relieving, and water or oil quenching shall be executed as well. Steel bars shall adhere to chemical composition and mechanical property requirements, including tensile strength, yield strength, elongation, reduction of area, impact strength, and Brinell hardness.
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1.1 This specification covers stainless steel bars for compressor and turbine bucket, blade, and airfoil applications.
1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this 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.
A275/A275M Practice for Magnetic Particle Examination of Steel Forgings
A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E112 Test Methods for Determining Average Grain Size
E292 Test Methods for Conducting Time-for-Rupture Notch Tension Tests of Materials
E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
E562 Test Method for Determining Volume Fraction by Systematic Manual Point Count
compressor airfoils; martensitic stainless steel; stainless steel bar; turbine airfoils; Compressor airfoils; Martensitic stainless steel bars--specifications; Stainless steel bars/billets--specifications; Turbine airfoil/blade/bucket applications;
ICS Number Code 77.140.20 (Steels of high quality)
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