ASTM A962/A962M-23a

Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range

ASTM International, 05/15/2023

Publisher: ASTM

File Format: PDF

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Published:15/05/2023

Pages:14

File Size:1 file , 410 KB

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1.1 This specification covers a group of common requirements that shall apply to carbon, alloy, stainless steel, and nickel alloy bolting under any of the following ASTM Specifications (or under any other ASTM Specifications that invoke this specification or portions thereof):

Title of Specifications ASTM Designation Alloy-Steel and Stainless Steel Bolting for
High Temperature or High Pressure Service and
Other Special Purpose Applications A193/A193M Carbon Steel, Alloy Steel, and Stainless Steel Nuts
for Bolts for High Pressure or High Temperature
Service, or Both A194/A194M Alloy-Steel and Stainless Steel Bolting for Low-
Temperature Service A320/A320M Stainless and Alloy-Steel Turbine-Type Bolting
Specially Heat Treated for High-Temperature
Service A437/A437M High-Temperature Bolting, with Expansion
Coefficients Comparable to Austenitic Stainless
Steels A453/A453M Alloy-Steel Bolting for Special Applications A540/A540M Precipitation-Hardening Bolting (UNS N07718)
for High Temperature Service A1014/A1014M High Strength Precipitation Hardening and Duplex
Stainless Steel Bolting for Special Purpose
Applications A1082/A1082M

1.2 In case of conflict, the requirements of the individual product specification shall prevail over those of this specification.

1.3 Fasteners are a wide-ranging classification that includes screws, bolts, nuts, washers, stud bolts, rivets, powder-actuated studs, staples, tacks, and pins. Bolting, which is composed of bolting materials, such as rods, bars, flats, and forgings, which are subsequently manufactured into bolting components, are a special sub-group of fasteners. Bolting materials and components have designated compositions and specific properties intended for applications in aggressive service where commercial generic fasteners may not be suitable or have insufficient fitness for purpose under certain conditions. These conditions include cryogenic or high temperature service, or excessive vibration, impact, or shock. To further address any other special service conditions where bolting is intended for use, additional requirements may be specified by mutual agreement between the purchaser and supplier.

1.4 Supplementary requirements are provided for use at the option of the purchaser. The supplementary requirements only apply when specified individually by the purchaser in the purchase order or contract.

1.5 This specification is expressed in both inch-pound units and in SI units. Unless the purchase order or contract specifies the applicable "M" specification designation (SI units) the inch-pound units shall apply. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. 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 nonconformance with the specification.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM A962/A962M-23a

Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range

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