Our alloy steel tubes, including 4130 ,4140,30CrMo,42CrMo and etc, are crafted for high strength and wear resistance. Blending premium alloys with precision manufacturing, they offer superior toughness and load-bearing capacity. Perfect for mechanical engineering, automotive components, and industrial machinery in demanding conditions.

| Material Chemical Composition(%) | |||||||||
| Standard | Steel Grade | C | Si | Mn | P | S | Cr | Mo | |
| ASTM A519 | 4130/30CrMo | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.04 | ≤0.04 | 0.8-1.1 | 0.15-0.25 | |
| 4140/42CrMo | 0.38-0.43 | 0.15-0.35 | 0.75-1 | ≤0.04 | ≤0.04 | 0.8-1.1 | 0.15-0.2 | ||
| Mechanical Performance | |||||||||
| CW | SR | A | N | ||||||
| RM Tensile Strength(Mpa)Min | A Elongation(%)Min |
RM Tensile Strength(Mpa)Min | A Elongation(%)Min |
RM Tensile Strength(Mpa)Min | Rel Yield Strength(Mpa)Min | A Elongation(%)Min |
RM Tensile Strength(Mpa)Min | Rel Yield Strength(Mpa)Min | A Elongation(%)Min |
| - | - | 724 | 10 | 517 | 379 | 30 | 621 | 441 | 20 |
| - | - | 855 | 10 | 552 | 414 | 25 | 855 | 621 | 20 |
