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GBT Q420

Q420


Q420 material is China structural steel and alloy steel.

Chemical composition of Q420, Q420 mechanical properties, Q420 datasheet, Q420 equivalent grade, Heat treatment and temperature process of Q420.


Q420 property sheet

Q420 Spec.

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Chemical Composition of Q420

C Max 0.20
Si Max 0.55
Mn 1.00-1.60
P 0.035
S 0.035
Cr Max 0.30
Ni Max 0.70
Mo Max 0.20

Mechanical Properties of Q420

Rp0.2 (MPa) 667 (≥)
Rm (MPa) 331 (≥)
AKV (J) 33
A (%) 22
Z (%) 34
Hardness HBW 313

Q420 shape and dimensions

Q420 Round bar: 1mm-800mm
Q420 Square bar: 10mm * 10mm-600mm *600mm
Q420 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
Q420 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
Q420 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
Q420 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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