Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range (Includes all amendments and changes 11/17/2023).
NORMA vydána dne 15.5.2023
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Designation standards: ASTM A962/A962M-23a
Publication date standards: 15.5.2023
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
This specification covers a group of common requirements that shall apply to carbon, alloy, and stainless steel fasteners or fastener materials, or both. These materials are intended for use at any temperature from cryogenic to the creep range. Requirements for the melting process and quality control procedures for ingot cast and strand cast products are detailed. Bars and fasteners shall be produced in accordance with the product specification. The chemical composition, as to heat and product analyses, shall conform to the limits of the product specification. Bars, fasteners, bolting materials, and specimen machined from fasteners shall meet the mechanical requirements which shall be determined by the following tests: (1) proof load test by mandrel/tension or compression methods, (2) cone proof load test, (3) impact test, and (4) hardness test. Assembly for the proof load and cone proof tests are illustrated. The depth of decarburization shall be determined by metallographic etching and if needed, microhardness testing.
Keywords:
austenitic stainless steel, bolts, steel, bolting components, steel, bolting materials, components, steel, nickel alloy bolting, nuts, steel, pressure vessel service, screws, stainless steel bolting, steel bars, alloy, steel bars, carbon, steel bars, stainless, steel bolting, studs, temperature service applications, high, temperature service applications, low, turbine materials, washers,, ICS Number Code 21.060.01 (Fasteners in general)