... Steel plate: ASTM A1011 or ASTM A653 Grade 50 Structural qualityTolerance: Min yield strength: 50,000 PSI (340 MPa) Max tensile strength: 79,000 ... hot-dip galvanized, ASTM A653 G90 U Channel Posta minimum tensile strength of 80,000 psi, and a minimum yield strength of 100,000 psi. ... alloyCustomized tolerances are accepted Standards: can produce in accordance with ASTM, AMS WW-T-700, BS EN, DIN and JIS ...