SAE 4340 Alloy Steel Tube Cold Drawn Diameter 68mm Length 6m
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| Chemical Composition and Mechanical Property for 4340 | ||||||||||
| Grade | Chemical Components | Mechanical Performance | ||||||||
| 4340 | C(Max) | Mn(Max) | S(Max) | Si(Max) | Cr | Mo | W | Ni | Tensile Strenght(Min） | Yield Strenght(Min) |
| Mpa | Mpa | |||||||||
| 0.37-0.44 | 0.50-0.80 | 0.3 | 0.17-0.37 | 0.60-0.90 | 0.15-0.25 | 0.50-0.80 | 1.25-1.65 | 980 | 835 | |
