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42CrMo4 (High grade steel)

Description

General

42CrMo4 high grade steel alloy contains: Ferro (Fe) rest, Carbon (C) 0.38-0.45, Chromium (Cr) 0.90-1.20, Molybdenum (Mo) 0.15-0.25, Silicon (Si) 0.17-0.37, Manganese (Mn) 0.50-0.80, Sulphur (S)

Properties

Chemical properties

Minimum value Maximum value Unit Sources
%
%

Electrical properties

Minimum value Maximum value Unit Sources
kV/mm
%
-0.45 -0.45 V
0.25 0.25 Ohm.mm²/m

Manufacturing Properties

Minimum value Maximum value Unit Sources

Mechanical properties

Minimum value Maximum value Unit Sources
MPa
MPa
MPa
7830 7830 kg/m³
11 11 %
MPa
J/cm
MPa
1000 1200 MPa
MPa
550 800 MPa
210000 210000 MPa

Optical properties

Minimum value Maximum value Unit Sources

Thermal properties

Minimum value Maximum value Unit Sources
°C
1540 1540 °C
°C
500 500 J/kg.K
46 46 W/m.K
12.3 12.3 e-6/K

Environment

4.4 mPt
0.09 Pt
1340 mELU
3.64 MJ/MJ
23.3 MJ
3.17 kg
0.01 kg
Environmental data for the production of 1 kg crude steel from SPIN. Transport is added. The coal comes for 65% from Canada, 23% Australia, 12% from the EEC. Iron ore comes for 37% from Brasil, 21% Australia, 31% Europe and the remaining 11% from elsewhere. Lime is imported from Belgium. Metallic alloy elements are assumed to be added in the required percetages. For details on the winning and refining of the elements see [Metallic Elements]. The production and emission data are for 1989.
Idemat 2003, Design for Sustainability, Delft University of Technology

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