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Scope

1.1 This specification covers high-strength low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction but intended primarily for use in welded bridges and buildings where savings in weight or added durability are important. The atmospheric corrosion resistance of this steel in most environments is substantially better than that of carbon structural steels with or without copper addition (see Note 1). When properly exposed to the atmosphere, this steel is suitable for many applications in the bare (unpainted) condition. This specification is limited to material up to 8 in. [200 mm] inclusive in thickness.

Note 1—For methods of estimating the atmospheric corrosion resistance of low-alloy steels, see Guide G101.

1.2 When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service is to be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.

1.3 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 is to be used independently of the other, without combining values in any way.

1.4 The text of this specification contains notes, footnotes, or both, that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.

1.5 For structural products cut from coiled product, 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; bridges; buildings; durability; high-strength; low-alloy; plates; riveted construction; shapes; steel; structural steel; weight; welded construction; ICS Number Code 77.140.10 (Heat-treatable steels)

To find similar documents by ASTM Volume:

01.04 (Steel--Structural, Reinforcing, Pressure Vessel, Railway)

To find similar documents by classification:

77.140.10 (Heat-treatable steels)

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