High Temperature Resistant ASTM ASME SA213 ASTM A213 TP304H Seamless Tube for Industrial Heat Exchanger and Heating System
High Temperature Resistant ASTM ASME SA213 ASTM A213 TP304H Austenitic Seamless Tube for Industrial Heat Exchanger
YUHONG GROUP we are one of the leading manufacturers of stainless steel tubes for heat exchanger .With the development more than 35 years' development we have exported more than 85 countries all around the world .Yuhong brand products ,with competive price and delivery ,won the great praise among our clients .
Heat Exchanger Tube Specification:
ASTM A213 TP304H (UNS S30409) is a premium austenitic seamless stainless steel tube engineered for high-temperature, high-pressure service in boilers, superheaters, reheaters, and heat exchangers. As a carbon-controlled variant of TP304, TP304H features a higher carbon range (0.04–0.10%) that delivers superior creep-rupture strength at temperatures above 538°C (1000°F), making it the top choice for power generation and industrial thermal equipment. Manufactured via seamless hot finishing or cold drawing and solution-annealed, it ensures exceptional structural integrity, corrosion resistance, and long-term reliability under extreme operating conditions.
Heat Exchanger Tube Chemistry Composition :
| C, % | Si, % | Mn, % | P, % | S, % | Cr, % | Ni, % |
| 0.04-0.10 | 1.00 max | 2.00 max | 0.045 max | 0.030 max | 18.0-20.0 | 8.0-11.0 |
Heat Exchanger Tube Mechanical Properties :
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 515 min | 205 min | 35 min | 192 max |
Heat Exchanger Tube Outside Diameter & Tolerance:
| Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 | |
| 101.6＜OD≤190.5 | +0.4/-1.2 | |
| 190.5＜OD≤228.6 | +0.4/-1.6 | |
| Cold Drawn | Outside Diameter, mm | Tolerance, mm |
| OD＜25.4 | ±0.10 | |
| 25.4≤OD≤38.1 | ±0.15 | |
| 38.1＜OD＜50.8 | ±0.20 | |
| 50.8≤OD＜63.5 | ±0.25 | |
| 63.5≤OD＜76.2 | ±0.30 | |
| 76.2≤OD≤101.6 | ±0.38 | |
| 101.6＜OD≤190.5 | +0.38/-0.64 | |
| 190.5＜OD≤228.6 | +0.38/-1.14 |
Heat Exchanger Tube Wall thickness & Tolerance:
| Hot rolled | Outside Diameter, mm | Tolerance, % |
| OD≤101.6, WT≤2.4 | +40/-0 | |
| OD≤101.6, 2.4＜WT≤3.8 | +35/-0 | |
| OD≤101.6, 3.8＜WT≤4.6 | +33/-0 | |
| OD≤101.6, WT>4.6 | +28/-0 | |
| OD>101.6, 2.4＜WT≤3.8 | +35/-0 | |
| OD>101.6, 3.8＜WT≤4.6 | +33/-0 | |
| OD>101.6, WT>4.6 | +28/-0 | |
| Cold Drawn | Outside Diameter, mm | Tolerance, % |
| OD≤38.1 | +20/-0 | |
| OD>38.1 | +22/-0 |
Heat Exchanger Tube Inspection & Test:
Chemistry composition,
Tensile test,
Hardeness test,
Flattening test,
Flaring test,
NDT,
Surface inspection and dimension check.
Heat Exchanger Tube Application:
- Power plant boilers (superheaters, reheaters, water walls)
- Industrial heat exchangers & condensers
- High-pressure thermal oil systems
- Petrochemical high-temperature process equipment
- Waste heat recovery systems
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