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 20Mn

20Mn


20Mn material is China structural steel and alloy steel.

Chemical composition of 20Mn, 20Mn mechanical properties, 20Mn datasheet, 20Mn equivalent grade, Heat treatment and temperature process of 20Mn.


20Mn property sheet

20Mn Spec.

Related Materials

2Cr20Mn9Ni2Si2N
1.3802
GX120Mn13
X120Mn12, 1.3401, A128, X110Mn14

Chemical Composition of 20Mn

C 0.17-0.23
Si 0.17-0.37
Mn 0.70-1.00
P 0.035
S 0.035
Cr 0.25
Ni 0.3
Cu 0.25

Mechanical Properties of 20Mn

Rp0.2 (MPa) 777 (≥)
Rm (MPa) 539 (≥)
AKV (J) 44
A (%) 22
Z (%) 13
Hardness HBW 134

20Mn shape and dimensions

20Mn Round bar: 1mm-800mm
20Mn Square bar: 10mm * 10mm-600mm *600mm
20Mn Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
20Mn Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
20Mn Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
20Mn 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