Grado |
C |
Mn |
P≤ |
S≤ |
Si |
Ni |
Cr |
Mo |
4140 |
0.38-0.43 |
0.75-1.00 |
0.04 |
0.04 |
0.15-0.35 |
- |
0.80-1.10 |
0.15-0.25 |
Grado |
Condition |
Yieldstrength(MPa) |
Tensilestrength(MPa) |
Elongation(%), in 2 in. or in 50mm |
Rockwell,Hardness B scale |
4140 |
HR |
621 |
855 |
15 |
100 |
SR |
689 |
855 |
10 |
100 |
|
A |
414 |
552 |
25 |
85 |
|
N |
621 |
855 |
20 |
100 |
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