Seamless Stainless Steel U tube
Seamless Stainless Steel U tube (TP316L / UNS S31603 / W.Nr. 1.4404) is a molybdenum-bearing austenitic grade with extra-low carbon content for chloride-rich, welded service. Manufactured by Tengqi in Fujian, China, every heat is fully traceable, hydro-tested and available with third-party inspection (SGS / BV / TUV) on request.
Product Specifications
- ASTM A213 / ASME SA213 — Seamless
- ASTM A269 / A269M — Seamless & Welded
- ASTM A270 / A270M — Sanitary Tubing
- ASTM A1016 / A1016M — General Requirements
- EN 10216-5 — Seamless Pressure Tubing
- Finishing: solution annealed, pickled & polished; bright annealed available on request
Size Range
| Outside Diameter (OD) | Wall Thickness | Length |
|---|---|---|
| 6.35 mm – 257 mm (1/4"– 10.1") | 0.5 mm – 12.7 mm | ≤ 22 m |
Chemical Composition
TP316L (UNS S31603) — Composition %
| UNS | C | Mn | P | S | Si | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| S31603 | ≤ 0.035 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | ≤ 1.00 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 3.00 |
Mechanical Properties
| Property | Value |
|---|---|
| Delivery Condition | Solution annealed, pickled & polished |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength (0.2% offset) | ≥ 170 MPa |
| Elongation in 2 in. / 50 mm | ≥ 35% |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm3 |
| Thermal Conductivity | 16.3 W/m·K |
| Specific Heat Capacity | 500 J/kg·K |
| Elastic Modulus | 193 GPa |
| Magnetic Properties | Non-magnetic (slightly magnetic when cold worked) |
| PREN (Pitting Resistance Equivalent) | 24.0-26.0 |
Industry Applications
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CONTACT US
Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province，355400，China
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