
Oil Cylinder
chemical composition
Grade |
Chemical composition % |
|||||||
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
|
40Cr |
0. 37 ~ 0.4 4 |
0.1 7~0.3 7 |
0 .. 5 0 ~ 0 . 8 |
≤ 0.0 3 5 |
≤ 0.0 3 5 |
0 .. 8 0 ~ 1. 10 |
≤ 0. 30 |
≤ 0.3 0 |
Mechanical behavior
Yield strength R1 |
Tensile strength Rm |
Elongation A% |
Shrinkage rate Z% |
Brinell hardness |
Charpy impact work |
||
MPa |
Psi |
MPa |
Psi |
J
|
|||
≥ 7 85 |
≥ 11 3854 |
≥ 9 80 |
≥ 14 2136 |
≥9 |
≥ 45 |
≤207 |
≥47 |
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