Standard Specification lor ALLOY-STEEL BOLTING MATERIALS FOR HIGHTEMPERATURE SERVICE
|Publication Date:||1 January 1966|
|ICS Code (Steels):||77.080.20|
|ICS Code (Fasteners in general):||21.060.01|
This specification2 covers alloysteel bolting material for pressure vessels, valves, flanges, and fittings for hightemperature service (Note 1). The term "bolting material" as used in this specification covers rolled, forged, or strain hardened bars, and bolts, screws, studs, and stud bolts.
Eight grades are covered, including four ferritic steels and four austenitic steels designated BS, B6, etc. Selection will depend upon design, service conditions, mechanical properties, and hightemperature characteristics (Note 2).
Nuts for use with this bolting material are covered in Section 13.
Supplementary requirements (Paragraphs S1 and S2) of an optional nature are provided. These shall apply only when specified in the inquiry, contract, and order.
2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-I93 in Section II of that Code.