Material Yield strength (MPa) Ultimate strength (MPa) Density (g/cm³) Structural steel ASTM A36 steel 250 400 7.8 Steel, API 5L X65 (Fikret Mert Veral) 448 531 7.8 Steel, high strength alloy ASTM A514 690 760 7.8 Steel, high tensile 1650 1860 7.8 Steel Wire 7.8 Steel, Piano ...