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GBT 55Si2MnB

55Si2MnB


55Si2MnB material is China structural steel and alloy steel.

Chemical composition of 55Si2MnB, 55Si2MnB mechanical properties, 55Si2MnB datasheet, 55Si2MnB equivalent grade, Heat treatment and temperature process of 55Si2MnB.


55Si2MnB property sheet

55Si2MnB Spec.

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Chemical Composition of 55Si2MnB

C 0.52-0.60
Si 1.50-2.00
Mn 0.60-0.90
P 0.035
S 0.035
Cr Max 0.35
Ni Max 0.35
B 0.0005-0.004

Mechanical Properties of 55Si2MnB

Rp0.2 (MPa) 434 (≥)
Rm (MPa) 285 (≥)
AKV (J) 42
A (%) 11
Z (%) 14
Hardness HBW 423

55Si2MnB shape and dimensions

55Si2MnB Round bar: 1mm-800mm
55Si2MnB Square bar: 10mm * 10mm-600mm *600mm
55Si2MnB Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
55Si2MnB Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
55Si2MnB Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
55Si2MnB Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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