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Q420A steel plate

Structural steel plate Q420A is mainly used for manufacturing the plants of factory ,the common constructure and construction machinery and equipment.The tensile strength of low alloy steel plate Q420A is within 520-680 Mpa,and the minimum yield strength is 420Mpa for thickness equal and belows 16mm.

Keywords:

Q420A steel plate

Chemical Composition

Main chemical elements composition of Q420A
C Si Mn P S V Nb Ti Cr Ni
0.20 0.55 1.00-1.70 0.045 0.045 0.02-0.20 0.015-0.060 0.02-0.20 0.40 0.70

Mechanical Property

Thickness (mm)
Q420A ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 420 400 380 360
Tensile strength (Mpa) 520-680

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