ASTM-A453 Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels

ASTM-A453 - 2017 R24 EDITION - CURRENT
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Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
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Scope

1.1 This specification covers four grades of bolting materials with nine classes of yield strength ranging from 50 to 120 ksi [345 to 827 MPa] for use in high-temperature service such as fasteners for pressure vessel and valve flanges. The material requires special processing and is not intended for general purpose applications. The term "bolting material," as used in this specification, covers rolled, forged, or hot-extruded bars; bolts, nuts, screws, washers, studs, and stud bolts. Headed bolts and rolled threads may be supplied.

Note 1 - Other bolting materials are covered by Specification A193/A193M and Specification A437/A437M.

1.2 Supplementary Requirement S 1 of an optional nature is provided. This shall apply only when specified by the purchaser in the order.

1.3 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

Keywords

bolts-steel; fasteners-steel; marking; nuts-steel; precipitation hardening steels; pressure vessel service; revision letter; steel bars-alloy; steel bolting material; steel flanges; steel values; temperature service applications-high; year date; ICS Number Code 21.060.01 (Fasteners in general)

To find similar documents by ASTM Volume:

01.01 (Steel--Piping, Tubing, Fittings)

To find similar documents by classification:

21.060.01 (Fasteners in general)

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Document Number

ASTM-A0453_A0453M-17R24

Revision Level

2017 R24 EDITION

Status

Current

Modification Type

Editorially changed

Publication Date

March 29, 2024

Document Type

Specification

Page Count

6 pages

Committee Number

A01.22