42CrMo is a kind of alloy steel in China,
42CrMo steel is a Chinese alloy steel, and has high strength and toughness, good hardenability, and no obvious temper brittleness.
BS EN 42CrMo4 round steel has better performance than
34CrMo4 steel due to the carbon and chromium content is higher.
42CrMo alloy steel generally used for engineering industry.
42CrMo Steel Chemical Composition
|
Steel Grade |
Chemical Composition % |
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
42CrMo |
0.38 to 0.45 |
0.17 to 0.37 |
0.50 to 0.80 |
≤ 0.030 |
≤ 0.030 |
0.90 to 1.20 |
0.15 to 0.25 |
42CrMo Alloy Steel Mechanical Properties
Yield strength: ≥ 930 MPa
Tensile strength: ≥ 1080 MPa
Elongation: ≥12%
Rate of reduction in area: ≥45%
Impact absorbing energy: ≥ 63 J
Material Brinell hardness: ≤229 (Annealed or high temperature tempered steel rod)
Sample diameter: 25mm
Heat treatment specification
First quenching heating temperature: 850 °C (Cooling – oil)
Tempering heating temperature: 560 °C (Cooling – water, oil)
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