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Q420C steel plate

High strength low alloy structural steel plate Q420C owned the minimum yield point above 420 Mpa for the thickness equal or belows 16mm,and tensile strength shall be within 520-680 Mpa.Normlised Q420C is mainly for heavy steel plate for improve the steel property when rolling.

Keywords:

Q420C steel plate

Chemical Composition

Main chemical elements composition of Q420C
C Si Mn P S V Nb Ti Al (min.) Cr Ni
0.20 0.55 1.00-1.70 0.035 0.035 0.02-0.20 0.015-0.060 0.02-0.20 0.015 0.40 0.70

Mechanical Property

Thickness (mm)
Q420C ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 420 400 380 360
Tensile strength (Mpa) 520-680

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