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ASTM A 453/A 453M Document Information:
Title
Standard Specification for High-Temperature Bolting Materials, with Expansion Coefficients Comparable to Austenitic Stainless Steels
ASTM International
Publication Date:
Oct 1, 2008
Scope:
This specification2 covers four grades of bolting
materials with ten 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 A
193/ A 193M and Specification A 437/A 437M.
Supplementary Requirement S 1 of an optional nature is provided.
This shall apply only when specified by the purchaser in the
order.
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.
The values stated in either SI 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 must be used
independently of the other. Combining values from the two systems
may result in nonconformance with the standard.
*A Summary of Changes section appears at the end of this
standard.
2 For ASME Boiler and Pressure Vessel Code
Applications see related Specification SA-453 in Section II of that
Code.
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
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