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GBT Q690

Q690


Q690 material is China structural steel and alloy steel.

Chemical composition of Q690, Q690 mechanical properties, Q690 datasheet, Q690 equivalent grade, Heat treatment and temperature process of Q690.


Q690 property sheet

Q690 Spec.

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Chemical Composition of Q690

C Max 0.18
Si Max 0.55
Mn 1.00-1.60
P 0.03
S 0.03
Cr Max 1.20
Ni Max 1.50
Mo Max 0.60
B Max 0.003

Mechanical Properties of Q690

Rp0.2 (MPa) 311 (≥)
Rm (MPa) 111 (≥)
AKV (J) 21
A (%) 14
Z (%) 22
Hardness HBW 243

Q690 shape and dimensions

Q690 Round bar: 1mm-800mm
Q690 Square bar: 10mm * 10mm-600mm *600mm
Q690 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
Q690 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
Q690 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
Q690 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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