Terra Steel
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Polygonal Profiles
Curved & Deformed
Complex Engineering
| Type | Seamless/Welded | Technique | Cold drawn/rolled |
|---|---|---|---|
| Section Shape | Special Shaped | Length | Under 5.5m or Customized |
| Dimensional Deviation | Shaped: ±0.2mm; Round: ±0.05mm | Curvature | ≤3mm/m; ≤0.3%L |
| Material | Carbon or Alloy | Process | Cutting, chamfering, punching, CNC turning, grinding |
Common irregular shapes include: D-shaped tube, Round grooved tube, Square groove tube, Knife shaped tube, Flat oval tube, Oval tube, Hexagonal tube, Semicircular tube, Fan tube, Triangle tube, and more.
| Steel Grade | Tensile Strength (Rm/Mpa) | Yield Strength (Rel/Mpa) | Elongation (A/%) |
|---|---|---|---|
| 10 | ≥335 | ≥205 | 24 |
| 20 | ≥410 | ≥245 | 20 |
| 35 | ≥510 | ≥305 | 17 |
| 45 | ≥590 | ≥335 | 14 |
| Q235B | 370~500 | 235 | 25 |
| Q345B | 470~630 | 345 | 20 |
| GB | ASTM | JIS | DIN | BS |
|---|---|---|---|---|
| 10 | 1010, 1012 | S10C | C10, CK10 | 045M10 |
| 20 | 1020 | S20C | C22, CK22 | 050A20 |
| 35 | 1035 | S35C | C35, CK35 | 060A35 |
| 45 | 1045 | S45C | C45, CK45 | 060A42 |
| 42CrMo | 4140 | SCM440 | 42CrMo4 | 708A42 |
We specialize in producing all kinds of steel tubes. Product specifications include: Seamless steel pipe with wall thickness 1-14mm and outer diameter 15-75mm, cold drawn pipe, cold rolled pipe, precision welded pipe, alloy pipe, pressure vessel pipe, and special shaped pipe. With over 30 years of experience, we provide high-quality precision components for diverse industrial needs.
