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GBT 4Cr9Si2

4Cr9Si2


4Cr9Si2 material is Chinese GB standard of internal combustion engine valve steel bar (GB/T 12773-1991).

Chemical composition of 4Cr9Si2, 4Cr9Si2 mechanical properties, 4Cr9Si2 datasheet, 4Cr9Si2 equivalent grade, Heat treatment and temperature process of 4Cr9Si2.


4Cr9Si2 property sheet

4Cr9Si2 Spec.

Related Materials

4Cr9Si2

Chemical Composition of 4Cr9Si2

C 0.35-0.50
Si 2.00-3.00
Mn 0.70
P 0.035
S 0.03
Cr 8.00-10.0
Ni 0.60

Mechanical Properties of 4Cr9Si2

Rp0.2 (MPa) 323 (≥)
Rm (MPa) 253 (≥)
AKV (J) 44
A (%) 43
Z (%) 32
Hardness HBW 423

4Cr9Si2 shape and dimensions

4Cr9Si2 Round bar: 1mm-800mm
4Cr9Si2 Square bar: 10mm * 10mm-600mm *600mm
4Cr9Si2 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
4Cr9Si2 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
4Cr9Si2 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
4Cr9Si2 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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