Abstract of ASTM A307

CARBON STEEL EXTERNALLY THREADED STANDARD FASTENERS

English 2000
0.000
ASTM
Detailed Information

1.1 This specification covers the chemical and mechanical requirements of three grades of carbon steel bolts and studs, in sizes 1/4 in. through 4 in. The fasteners are designated by “Grade” denoting tensile strength and intended use, as follows:
Grade A
Bolts and studs having a minimum tensile strength of 60 ksi and Intended for general applications.
Grade B
Bolts and studs having a tensile strength of 60 to 100 ksi and intended for flanged joints In piping systems with cast iron flanges, and
Grade C
Nonheaded anchor bolts, either bent or straight, having properties conforming to Specification A36 (tensile strength of 58 to 80 ksi) and intended for structural anchorage purposes.

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