MIL-S-12505B, MILITARY SPECIFICATION: STEEL, STRUCTURAL, HIGH-STRENGTH, LOW-ALLOY, SHAPES, PLATES, AND BARS FOR WELDED, RIVETED, AND BOLTED STRUCTURES (08-APR-1970) [S/S BY ASTM-A242/A242M]

MIL-S-12505B, MILITARY SPECIFICATION: STEEL, STRUCTURAL, HIGH-STRENGTH, LOW-ALLOY, SHAPES, PLATES, AND BARS FOR WELDED, RIVETED, AND BOLTED STRUCTURES (08-APR-1970) [S/S BY ASTM-A242/A242M]., This specification covers weldable, high-strength, low alloy structural-steel shapes, plates, and bars to be furnished in thicknesses from 3/16" to 4", inclusive.