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Mechanical properties of Q355GNHA steel plate

Mechanical properties of Q355GNHA steel plate
Dec 15, 2022 page view:20

Q355GNHA steel plate

The raw material of Q355GNHA steel plate is weathering steel. By adding a small amount of alloy elements such as Cu, P, Cr, Ni, etc., it can form a maintenance layer on the basic surface of metal to improve the atmospheric corrosion resistance of steel.

Chemical composition of Q355GNHA steel plate (wt%):
C:≤0.12; Si:0.2~0.75; Mn:≤1
P:0.07~0.15; S:≤0.02; Ni:≤0.65
Cr:0.3~1.25; Mo:≤0.3; Cu:0.25~0.55
Nb:0.015~0.06; V:0.02~0.12; Ti:0.02~0.1
Alt:≥0.02; Zr:≤0.15

Mechanical properties of Q355GNHA steel plate with thickness ≤ 6mm
ReL(MPa):≥355
Rm(MPa):490-630
A(%):≥22

Mechanical properties of Q355GNHA steel plate with thickness>6~16mm
ReL(MPa):≥355
Rm(MPa):490-630
A(%):≥22

Mechanical properties of Q355GNHA steel plate with thickness>16~40mm
ReL(MPa):≥345
Rm(MPa):490-630
A(%):≥22

Similar weathering steel plates are Q235NH (A, B, C, D, E), Q295NH (A, B C D E), Q355NH (A, B, C, D, E), Q415NH (A, B, C, D, E), Q460NH (A, B C, D E), Q500NH (A, B, C, D, E), Q550NH (A, B, C, D, E), Q295GNH (A, B, C, D, E), Q355GNH (A, B, C, D, E), etc.

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