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GBT 70

70


70 material is China structural steel and alloy steel.

Chemical composition of 70, 70 mechanical properties, 70 datasheet, 70 equivalent grade, Heat treatment and temperature process of 70.

  • Tags: 70,

70 property sheet

70 Spec.

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Chemical Composition of 70

C 0.67-0.75
Si 0.17-0.37
Mn 0.50-0.80
P 0.035
S 0.035
Cr 0.25
Ni 0.3
Cu 0.25

Mechanical Properties of 70

Rp0.2 (MPa) 186 (≥)
Rm (MPa) 479 (≥)
AKV (J) 44
A (%) 43
Z (%) 14
Hardness HBW 242

70 shape and dimensions

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

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