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Home > Products > Steel Plate > Hight Strength Low Alloy Steel

Q390D steel plate

GB/T1591 Q390 contains five different steel grades as Q390A,Q390B,Q390C,Q390D and Q390E.Structural steel Q390D shall be done impacting test at low temperature minus 20 degree centigrade.Normalised heat treatment suggested to be done for low alloy steel plate Q390D in heavy thickness.
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Chemical Composition Mechanical Property
Chemical Composition
Main chemical elements composition of Q390D
C Si Mn P S V Nb Ti Al (min.) Cr Ni
0.20 0.55 1.00-1.60 0.030 0.030 0.02-0.20 0.015-0.060 0.02-0.20 0.015 0.30 0.70
Mechanical Property
Thickness (mm)
Q390D ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 390 370 350 330
Tensile strength (Mpa) 490-650
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GNEE Steel was founded in 2008 with a registered capital of 5 million yuan. After more than ten years of ups and downs, GNEE Steel has grown into a comprehensive steel supply chain enterprise. It has 8 subsidiaries, located in Anyang, Tianjin, Hong Kong, Zhengzhou, Singapore and other countries and regions in China, with more than 200 employees, and its influence has reached all over the world.
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