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GBT Q620

Q620


Q620 material is China structural steel and alloy steel.

Chemical composition of Q620, Q620 mechanical properties, Q620 datasheet, Q620 equivalent grade, Heat treatment and temperature process of Q620.


Q620 property sheet

Q620 Spec.

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Chemical Composition of Q620

C Max 0.18
Si Max 0.55
Mn 1.00-1.60
P 0.025
S 0.025
Cr Max 0.80
Ni Max 1.20
Mo Max 0.60
B Max 0.003

Mechanical Properties of Q620

Rp0.2 (MPa) 627 (≥)
Rm (MPa) 625 (≥)
AKV (J) 44
A (%) 31
Z (%) 14
Hardness HBW 124

Q620 shape and dimensions

Q620 Round bar: 1mm-800mm
Q620 Square bar: 10mm * 10mm-600mm *600mm
Q620 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
Q620 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
Q620 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
Q620 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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