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GBT Q255

Q255


Q255 material is China structural steel and alloy steel.

Chemical composition of Q255, Q255 mechanical properties, Q255 datasheet, Q255 equivalent grade, Heat treatment and temperature process of Q255.


Q255 property sheet

Q255 Spec.

Related Materials

Chemical Composition of Q255

C 0.18-0.28
Si Max 0.30
Mn 0.40-0.70
P 0.045
S 0.05

Mechanical Properties of Q255

Rp0.2 (MPa) 635 (≥)
Rm (MPa) 184 (≥)
AKV (J) 41
A (%) 32
Z (%) 41
Hardness HBW 311

Q255 shape and dimensions

Q255 Round bar: 1mm-800mm
Q255 Square bar: 10mm * 10mm-600mm *600mm
Q255 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
Q255 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
Q255 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
Q255 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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