| Name | Seamless Stainless Steel Tubes |
| Items | Square tubes, round tubes, oval pipes, special shaped pipes, |
| empaistic pipes, fittings |
| Standard | ASTM A554, A249, A269 and A270 |
| Material Grade | 201: Ni 0.8%~1% |
| 202: Ni 3.5%~4.5% |
| 304: Ni 8%, Cr 18% |
| 316: Ni 10%, Cr 18% |
| 316L: Ni10%~14% |
| 430: Cr16%~18% |
| Outer Diameter | 9.53mm--159mm |
| Thickness | 0.3mm - 3.0mm |
| Length | 6m or as customers' request |
| a) Outer Diameter: +/- 0.2mm |
| Tolerance | b) Thickness: +/- 0.02mm |
| c) Length: +/- 5mm |
| Surface | Pickling and annealing |
| AP tube |
| BA tube |
| MP tube |
| EP tube |
| end treatment | 1) Plain |
| 2) Beveled |
| 3) Thread with Coupling or cap |
| 4)Bending |
| Application | Liquid or gas transportation,such as oil and gas,water or chemical liquids. |
| Test | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT |
| Chemical Composition of Material | Material Composition | 201 | 202 | 304 | 316L | 430 |
| C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.035 | ≤0.12 |
| Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 |
| Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | ≤1.00 |
| P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | ≤0.040 |
| S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | ≤0.030 |
| Cr | 13-15 | 14-17 | 18-20 | 16-18 | 16-18 |
| Ni | 0.7-1.1 | 3.5-4.5 | 8-10.5 | 10-14 |
|
| Mo |
|
|
| 2.0-3.0 |
|
| Material Item | 201 | 202 | 304 | 316 |
| Mechanical Property | Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 |
| Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 |
| Extension | ≥30% | ≥30% | ≥35% | ≥35% |
| Hardness (HV) | <105 | <100 | <90 | <90 |
| Payment | Payment by T/T, 30% as advance payment and 70% balance pay before shipping. |
| Delivery time | A.7 days if this goods is stock goods. |
| B. 15 days if this goods will be produced after order |
| Validity | Valid time is 3 days for price usually. |