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Q420D steel plate
Q420D steel plate
Q420D steel plate
Q420D steel plate
Q420D steel plate
Q420D steel plate
Q420D steel plate
Q420D steel plate

Q420D steel plate

GB/T1591 Q420 contains five different steel grades as Q420A,Q420B,Q420C,Q420D and Q420E.Structural steel Q420D shall be done impacting test at low temperature minus 20 degree centigrade.Normalised heat treatment suggested to be done for low alloy steel plate Q420D in heavy thickness.
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Chemical Composition Mechanical Property
Chemical Composition
Main chemical elements composition of Q420D
C Si Mn P S V Nb Ti Al (min.) Cr Ni
0.20 0.55 1.00-1.70 0.030 0.030 0.02-0.20 0.015-0.060 0.02-0.20 0.015 0.40 0.70
Mechanical Property
Thickness (mm)
Q420D ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 420 400 380 360
Tensile strength (Mpa) 520-680
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GNEE Steel was established in 2008. With over ten years of continuous development, we have grown into a professional steel manufacturing & processing solution provider. We serve global clients with reliable steel products and custom fabrication services.
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