The Seamlessly Formed Stainless Steel Tube is manufactured using advanced seamless forming technology, resulting in a uniform wall thickness, smooth internal and external surfaces, and a complete absence of weld lines. This construction eliminates weak points associated with welded tubes, providing superior pressure resistance, corrosion resistance, and structural integrity. It is ideal for high-demand fluid transport, hydraulic systems, and precision mechanical applications.
| Parameter | Details |
|---|---|
| Standards | ASTM A269, A312, A213; EN 10216-5; GB/T 14976; JIS G3459 |
| Available Grades | 304, 304L, 316, 316L, 321, 310S, 347, Duplex 2205 |
| Outer Diameter | 6 mm – 630 mm |
| Wall Thickness | 0.5 mm – 30 mm |
| Length | Fixed lengths 3m / 6m, or custom lengths upon request |
| Forming Process | Cold drawn / Cold rolled / Hot rolled / Pilgered |
| Surface Finish | Annealed, pickled, polished, bright annealed, or as required |
| Grade | C ≤ | Si ≤ | Mn ≤ | P ≤ | S ≤ | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| 304 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 | – |
| 316 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
| 316L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
Tested in accordance with ASTM E8 / E8M.
| Grade | Tensile Strength (MPa) min | Yield Strength (MPa) min | Elongation (%) min | Hardness (HB) max |
|---|---|---|---|---|
| 304 | 515 | 205 | 40 | 201 |
| 316 | 515 | 205 | 40 | 217 |
| 316L | 485 | 170 | 40 | 217 |
For inquiries, technical datasheets, or custom sizes, please contact our sales team.