42CrMo4 EN material number is 1.5530. 42CrMo4 steel is a common chromium-molybdenum steel that usually used after quenched and tempered, with high intensity, high hardenability.
EN 10083 - 3: 2006 Steels for quenching and tempering. Technical delivery conditions for Alloy steels.
Main Grades: 27MnCrB5-2, 25CrMo4, 25CrMoS4, 30CrNiMo8, 20MnB5, 30MnB5, 37CrS4, 37CrS4, 35NiCr6, 42CrMo4
EN10083-3 42CrMo4 Alloy Steel Chemical Composition
|
Grade |
Chemical Composition |
|
42CrMo4 |
The Element Max (%) |
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
V |
B |
|
0.38-0.45 |
0.40 |
0.60-0.90 |
0.025 |
0.035 |
0.90-1.20 |
0.15-0.30 |
- |
- |
- |
EN10083-3 42CrMo4 Alloy Steel Mechanical Property
|
Grade |
Mechanical Property |
|
42CrMo4 |
t |
Re
min. |
Rm |
A
min |
Z
min |
KV
min. |
|
MPa |
% |
% |
J |
|
≤8mm |
900 |
1100-1300 |
10 |
40 |
- |
|
＞8mm≤20mm |
750 |
1000-1200 |
11 |
45 |
35 |
|
＞20mm≤60mm |
650 |
900-1100 |
12 |
50 |
35 |
|
＞60mm≤100mm |
550 |
800-950 |
13 |
50 |
35 |
|
＞100mm≤160m |
500 |
750-900 |
14 |
55 |
35 |
42CrMo4 Alloy Steel Heat Treatment:
|
Steel designation |
Quenching
℃ |
Quenching
agent |
Tempering
℃ |
End quench test
℃ |
|
42CrMo4 |
820-880 |
Water or oil |
540-680 |
850±5 |
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