Seamless Stainless Steel Boiler Tube
TENGQI, a professional stainless steel boiler tube manufacturer and supplier based in Fujian, China, specializes in producing high-quality seamless stainless steel boiler tubing using advanced cold-drawing and precision manufacturing processes. Our product range includes seamless boiler tubes, water tube boiler pipes, fire tube boiler tubes, and ERW boiler tubing, available in various sizes, wall thicknesses, and stainless steel grades to meet diverse industrial requirements.
All our stainless steel boiler tubes comply with international standards such as ASTM, ASME, and EN specifications, ensuring consistent quality, dimensional accuracy, and performance stability. Designed for efficient heat transfer and structural integrity, our tubes are widely used in high-pressure boilers, heat exchangers, superheaters, and condensers.
With strict quality control, competitive pricing, customized solutions, and reliable global delivery, TENGQI has established a strong reputation as a trusted supplier of stainless steel boiler tubes in both domestic and international markets.
Seamless Stainless Steel Boiler 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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Browse the complete ranges: All Stainless Steel Boiler Tubes | Explore Stainless Steel U tube | Seamless Stainless Steel Tubes Catalog
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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