Historical
SAE AS 7478B-1997 (SAE AS7478B-1997)
Bolts and Screws, Steel, UNS S66286 Classification: 130 ksi/1200 \mDF 1800\mDF Solution Heat Treated, Aged After Roll Threaded Procurement Specification for ( Reaffirmed: May 1995 Sep 2001 May 2006 )
This procurement specification covers bolts and screws made from a corrosion and heat resistant age hardenable iron base alloy of the type identified under the Unified Numbering System as UNS S66286. The following specification designations and their properties are covered: AS7478: 130 ksi minimum ultimate tensile strength at room temperature 65 ksi stress-rupture strength at 1200 degrees F; AS7478-2 130 ksi minimum ultimate tensile strength at room temperature 78 ksi minimum ultimate shear strength at room temperature. Classification: 130 ksi minimum tensile strength at room temperature 1200 degrees F maximum test temperature of parts. Primarily for aerospace propulsion system applications where stress-rupture strength and creep resistance are required at elevated temperature.
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Society of Automotive Engineers [sae]