Seamless Stainless Steel TP304 |UNS S30400|1.4301 Tube
As a dedicated stainless steel seamless tube manufacturer based in Fujian’s industrial hub, Tengqi specializes in high-precision Cold Drawn (CD) and Cold Rolled production processes. Our facility integrates advanced heat treatment and precision finishing to ensure every tube features a homogeneous metallurgical structure and exceptional dimensional stability.
Compared to welded alternatives, our seamless TP304 tubes offer enhanced structural integrity, making them the preferred choice for high-pressure systems and critical fluid transport.
Seamless Stainless Steel TP304 Tube (TP304 / UNS S30400 / W.Nr. 1.4301) is a general-purpose austenitic grade with excellent formability and resistance to oxidizing media. 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
TP304 (UNS S30400) — Composition %
| UNS | C | Mn | P | S | Si | Cr | Ni |
|---|---|---|---|---|---|---|---|
| S30400 | ≤ 0.08 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | ≤ 1.00 | 18.0 – 20.0 | 8.0 – 11.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Delivery Condition | Solution annealed, pickled & polished |
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2% offset) | ≥ 205 MPa |
| Elongation in 2 in. / 50 mm | ≥ 35% |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm3 |
| Thermal Conductivity | 16.2 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) | 18.0-20.0 |
Industry Applications
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CONTACT US
Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province，355400，China
+86-577-88877003
+86-577-88877015
+86-577-88877019
+86 13587686960
info@xtd-ss.com
sales@xtd-ss.com
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