High quality special steel supplier.Old rev.

  • Certified Company

    DNV&ABS

  • Certified Company

    ISO 9001:2008

  • R&D Production

    In China
Get a Quote

GBT 40MnBH

40MnBH


40MnBH material is China structural steel and alloy steel.

Chemical composition of 40MnBH, 40MnBH mechanical properties, 40MnBH datasheet, 40MnBH equivalent grade, Heat treatment and temperature process of 40MnBH.


40MnBH property sheet

40MnBH Spec.

Related Materials

Chemical Composition of 40MnBH

C 0.37-0.44
Si 0.17-0.37
Mn 1.00-1.40
P 0.035
S 0.035
Cr Max 0.35
B 0.0005-0.0035
Ti —
other —

Mechanical Properties of 40MnBH

Rp0.2 (MPa) 143 (≥)
Rm (MPa) 946 (≥)
AKV (J) 23
A (%) 32
Z (%) 41
Hardness HBW 314

40MnBH shape and dimensions

40MnBH Round bar: 1mm-800mm
40MnBH Square bar: 10mm * 10mm-600mm *600mm
40MnBH Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
40MnBH Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
40MnBH Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
40MnBH Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Our Materials

Why Our Service?

Let’s Start Work
Together

Get a Quote

Quick Contact

©Longhai Special Steel 2025