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Celebrating 100 years! Marmon/Keystone - a century of service

2.000 x5.000 x.188 (Rectangular Tubing)

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LB/FT: 8.1500
ASTM A-500:
Covers cold formed welded and seamless carbon square, rectangular, or special shape structural tubing for general structural purposes. Covers three grades:

Grade A - 39,000 psi Min. Yield
Grade B - 46,000 psi Min. Yield
Grade C - 50,000 psi Min. Yield

ASTM A-513:
This specification covers electric-resistance-welded carbon and alloy steel tubing for use as mechanical tubing. It covers round, square,rectangular, and special shapes made from hot or cold rolled steel. It covers as welded, sink drawn, mandrel drawn, and special smooth inside diameter. Common grades in warehouse stocks are 1010, 1015, 1020, and 1026.

12. Condition


The types and conditions of tubing covered by this specification are:

Type #CodeDescription
1A.W.H.R.as welded from hot-rolled steel

Size Range: 1/2in. x 1in. through 12in. x 16in.