Attributes . Min. Tensile Strength (PSI) . Values

1,25,000 (4)   100,000 (21)   115,000 to 125,000 (6)   125,000 (7)   130,000 psi (12)   140,000 psi (10)   140.000 (2)   140000 (1)   45000 (2)   50,000 (1)   500 N/sq mm (12)   60,000 (3)   70,000 psi (2)   70.000 (2)   72.000 (1)   75,000 (4)   84000 (1)   90,000 psi (4)