... , 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 140, 150 Cold Drawn Flat Bars: (Wall thickness ... , 125, 130 20x 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130 Standard: ASTM A 269 ... , ASTM A 312, ASTM A 511, ASTM A 456 / A 450 M, ASTM A 312 / A 312 M, ASTM A 123 / A ...