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ASTM A 242/A 242M Document Information:
Title
Standard Specification for High-Strength Low-Alloy Structural Steel
ASTM International
Publication Date:
Apr 1, 2004
Scope:
This specification covers high-strength low-alloy structural
steel shapes, plates, and bars for welded, riveted, or bolted
construction intended primarily for use as structural members where
savings in weight [mass] or added durability are important. The
atmospheric corrosion resistance of the steel in most environments
is substantially better than that of carbon structural steels with
or without copper addition. When properly exposed to the
atmosphere, this steel can be used bare (unpainted) for many
applications (see Note 1). This specification is limited to
material up to 4 in. [100 mm], inclusive, in thickness.
NOTE 1—For methods of estimating the atmospheric corrosion
resistance of low-alloy steels, see Guide G 101.
When the steel is to be welded, it is presupposed that a welding
procedure suitable for the grade of steel and intended use or
service will be utilized. See Appendix X3 of Specification A 6/A 6M
for information on weldability.
The values stated in either inch-pound units or SI units are to
be regarded 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.
For structural products produced from coil and furnished without
heat treatment or with stress relieving only, the additional
requirements, including additional testing requirements and the
reporting of additional test results, of Specification A 6/A 6M
apply.
Keywords:
- atmospheric corrosion resistance
- bars
- bolted construction
- durability
- high-strength
- low-alloy
- plates
- riveted construction
- shapes
- steel
- structural steel
- weight
- welded construction
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