A500 steel
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A500 and A501 are two related families of carbon steel alloys which are structural steel round tubing and pipes, and rectangular and square structural tubing. The alloy specifications are set by ASTM International. [1]
A500 tubing is cold formed, with A501 tubing being hot formed.
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[edit] Specifications
As with other steels, A500 and A501 have a specific gravity of approximately 7.85, and density of 0.285 pounds per cubic inch. [2]
[edit] A500
A500 cold-formed tubing coumes in six grades, Round tubing/piping grades A, B, and C, and Square and Rectangular tubing grades A, B, and C. [1]
- Round tubing and pipe
- Grade A - minimum yield strength of 33,000 psi (33 ksi, where 1 ksi = 1,000 psi) (225 MPa), and minimum ultimate tensile strength of 45,000 psi (45 ksi) (310 MPa).
- Grade B - minimum yield strength of 42,000 psi (42 ksi) (290 MPa), and minimum ultimate tensile strength of 58,000 psi (58 ksi) (400 MPa).
- Grade C - minimum yield strength of 46,000 psi, and minimum ultimate tensile strength of 62,000 psi.
- Square and rectangular tubing
- Grade A - minimum yield strength of 39,000 psi, and minimum ultimate tensile strength of 45,000 psi.
- Grade B - minimum yield strength of 46,000 psi, and minimum ultimate tensile strength of 58,000 psi.
- Grade C - minimum yield strength of 50,000 psi, and minimum ultimate tensile strength of 62,000 psi.
[edit] A501
A501 hot-formed tubing comes in one grade, for round tubing only.
Minimum yield stress is specified as 36,000 psi (36 ksi) (250 MPa), and minimum ultimate tensile strength of 58,000 psi (58 ksi) (400 MPa).
[edit] References
- ^ a b Manual of Steel Construction, 8th Edition, 2nd revised printing, American Institute of Steel Construction, 1987, ch 1 page 1-11
- ^ A500A steel material properties, accessed October 8, 2006
