A490-04a - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
Description:
This specification covers two types of quenched and tempered, alloy steel, heavy hex structural bolts having a tensile strength of 150 to 173 ksi.
The bolts are furnished in sizes 1/2 to 1 ? in., inclusive. They are designated by type denoting chemical composition as
follows:
Type 1 Medium carbon alloy steel
Type 2 Withdrawn in 2002
Type 3 Weathering steel
Category: ASTM International Standards Specifications
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