Flowtera Pipe
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Alloy Steel round 4140 tubing (often referred to as Chromoly steel) is specialized for heavy-duty industrial applications. It is renowned for its exceptional strength, resistance to fracturing, abrasion resistance, and impact durability in high-stress environments.
The 4140/42 and 4130 mechanical tubing grades are medium carbon alloy steels. The integration of chromium and molybdenum as alloying elements, combined with precision heat treatment, provides a superior balance of hardness, ductility, and tensile strength.
| 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 | 0.15-0.25 | |
| Mechanical Performance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| SR (Stress Relieved) | A (Annealed) | N (Normalized) | |||||||
| Tensile (Mpa) | Elongation (%) | Tensile (Mpa) | Yield (Mpa) | Elongation (%) | Tensile (Mpa) | Yield (Mpa) | Elongation (%) | ||
| 724 | 10 | 517 | 379 | 30 | 621 | 441 | 20 | ||
| 855 | 10 | 552 | 414 | 25 | 855 | 621 | 20 | ||
