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GB 65


GB 65 material is China structural steel and alloy steel.

Chemical composition of GB 65, GB 65 mechanical properties, GB 65 datasheet, GB 65 equivalent grade, Heat treatment and temperature process of GB 65.

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GB 65 property sheet

GB 65 Spec.

Chemical Composition of GB 65

C 0.62-0.70
Si 0.17-0.37
Mn 0.50-0.80
P 0.035
S 0.035
Cr Max 0.25
Ni Max 0.25

Mechanical Properties of GB 65

Rp0.2 (MPa) 177 (≥)
Rm (MPa) 798 (≥)
AKV (J) 14
A (%) 11
Z (%) 23
Hardness HBW 324

GB 65 shape and dimensions

GB 65 Round bar: 1mm-800mm
GB 65 Square bar: 10mm * 10mm-600mm *600mm
GB 65 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
GB 65 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
GB 65 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
GB 65 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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