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DOM Tubing (Drawn Over Mandrel) is a high-strength steel tube manufactured using a specialized cold-drawing process. It refines electric resistance welded (ERW) tubing by pulling it through a die and over a mandrel, resulting in precise dimensions, superior surface finishes, and enhanced mechanical properties.
Due to its superior advantages, DOM steel tube is the material of choice for high internal pressure, rotational, or cyclical-workload applications:
| ASTM A513 DOM Tubing Mechanical Properties | ||||
|---|---|---|---|---|
| Steel Grade | Rm (Mpa) | Reh (Mpa) | Elongation (%) | RB (min) |
| 1010 | 415 | 345 | 5 | 73 |
| 1020 | 480 | 415 | 5 | 80 |
| 1035 | 620 | 550 | 5 | 90 |
| 4130 | 655 | 585 | 5 | 90 |
| 4140 | 760 | 690 | 5 | 90 |
We provide flexible steel pipe cutting, subsequent processing, and precise straightening with straightness tolerances up to 0.05mm.
