ASTM A542 / A542M Type C Class 4

Chemical Properties

Carbon Manganese Phosphorus Sulfur Silicon Chromium Molybdenum Copper Nickel Vanadium Titanium Boron Columbium
0.08–0.18 0.25–0.66 0.025 0.025 0.13 2.63–3.37 0.85–1.15 0.28 0.28 0.18–0.33 0.015–0.035 0.005–0.045 0.001–0.003

Mechanical Properties

Class Tensile strength,min:
ksi [MPa]
Yield strength,min:
ksi [MPa]
Elongation in 2 in. [50 mm] min, %A,B
Class 4 85–110 [585–760] 55 [380] 20

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