What is the chemical composition of 42CrMo4 alloy and 42CrMo alloy?
The main difference of 42CrMo4 alloy and 42CrMo alloy is the produced standard. For the chemical composition, the P, V and S elements are a little different each other, machinery property is similar.
42CrMo4 alloy is from EN standard-EN10083. It is a kind of alloy steel with high hardenability, good toughness and small deformation during quenching. It has high creep strength and endurance strength at high temperature.
42CrMo is China GB standard GB/T 3077. It is a medium carbon alloy structural steel with good mechanical properties, good hardenability and wide application in the machinery industry.
The chemical constituents of 42CrMo4 and 42CrMo alloy are shown in Table 1 and Table 2.
Table 1:
Composition |
C |
Si |
Mn |
S |
P |
Mo |
Cr |
Ni |
|
42CrMo4 |
0.38-0.45 |
≤0.40 |
0.60-0.90 |
≤0.035 |
≤0.035 |
0.15-0.30 |
0.90-1.20 |
≤0.40 |
|
42CrMo |
0.38-0.45 |
0.17-0.45 |
0.50-0.80 |
≤0.04 |
≤0.035 |
0.15-0.25 |
0.90-1.20 |
- |
Table 2:
Composition |
C |
Si |
Mn |
S |
P |
Mo |
Cr |
|
42CrMo |
0.38-0.45 |
0.17-0.45 |
0.5-0.8 |
≤0.04 |
≤0.035 |
0.15-0.25 |
0.90-1.20 |
|
Normal Quality |
0.38-0.45 |
0.17-0.45 |
0.5-0.8 |
≤0.035 |
≤0.035 |
0.15-0.25 |
0.90-1.20 |
|
High Quality |
0.38-0.45 |
0.17-0.45 |
0.5-0.8 |
≤0.025 |
≤0.025 |
0.15-0.25 |
0.90-1.20 |
|
Extra High Quality |
0.38-0.45 |
0.17-0.45 |
0.5-0.8 |
≤0.015 |
≤0.025 |
0.15-0.25 |
0.90-1.20 |
Katalor is a professional alloy steel products supplier in China. We can supply customized 42CrMo4 alloy and 42CrMo alloy hot rolled plates according to the customer’s requirement. Welcome to contact us for new inquiry.
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