ASTM A542 / A542M Type A Class 4

Chemical Properties

Carbon Manganese Phosphorus Sulfur Silicon Chromium Molybdenum Copper Nickel Vanadium
0.18 0.25–0.66 0.025 0.025 0.50 1.88–2.62 0.85–1.15 0.43 0.43 0.04

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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