What is 42CrMo4? This Grade is the special high steel grade which can be quenched and tempered. It offers a robust amalgamation of strength and toughness in the state of being quenched and tempered. Different European standards cover the specification of this steel in different forms and processing conditions. The steel can be subjected to induce hardening. This steel grade is usually available in a mix of microstructure i.e., martensite and austenite. The special grade of this steel is subjected to M-treatment to offer good machinability properties.
42crmo4 steel Equivalent
Equivalent Of 42CrMo4 alloy Structure Steel
USA | Germany | China | Japan | France | England | Italy | Poland | ISO | Austria | Sweden | Spain |
ASTM/AISI/UNS/SAE | DIN,WNr | GB | JIS | AFNOR | BS | UNI | PN | ISO | ONORM | SS | UNE |
4140/G41400 | 42CrMo4 / 1.7225 | 42CrMo | SCM440 | 42CD4 | 08M40 |
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42CrMo4 |
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2244 |
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42CrMo4 steel Mechanical Properties
The mechanical properties of annealed 42CrMo4 alloy steel are outline in the table below
Tensile strength | Yield strength | Elongation | Reduction of area | Poisson's ratio | Impact absorbing energy> |
σb/MPa | σs/MPa | 85(%) | ψ(%) |
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AKV/J |
1100-1300 | 900Min | 10 min | 40 min | 0.27-0.30 | 35 Min |
42crmo4 steel Chemical Composition
Chemical composition of 42CrMo4, %
С | Si | Mn | P | S | Cr | Mo | Cu |
0.38-0.45 | 0,10-0.40 | 0.60-0.90 | <0.025 | <0.035 | 0.90-1.20 | 0.15-0.30 | <0.40 |
42crmo4 steel Application
Steel grade 42CrMo4 is popular in the machine building industry and is used to make high-strength parts of compressors, turbines, working elements of heavy ground and underground equipment, and parts of agricultural machines.