S420ML steel is a technical delivery condition for thermo mechanical rolled weldable fine grain structural steel.
S420ML steel
S420ML steel Mechanical property:
Yield Strength σ0.2(MPa):
≥ 420(thickness under 16mm);
≥ 400(thickness between 16-40mm)
≥390(thickness between 40-63mm)
≥380(thickness between 63-80mm)
≥370(thickness between 80-100mm)
≥365(thickness between 100-120mm)
Tensile Strength σb(MPa) :
520-680(thickness under 40mm)
500-660(thickness between 40-63mm)
480-640(thickness between 63-80mm)
470-630(thickness between 80-100mm)
490-620(thickness between 100-120mm)
Elongation(A5): ≥ 19 %
Impact Energy (%):
≥ 27 (under -50 degree)
≥31 (under -40 degree)
≥ 40(under -30 degree)
≥ 47(under -20 degree)
≥ 51(under -10 degree)
≥ 55(under 0 degree)
≥ 63(under 20 degree)
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Tags: S420M steel, S355ML steel, S355J2H square pipe
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