Products Description
Our Advantages
1. Precise Dimensions
- Stainless Boiler Tube is manufactured using a cold drawing process and a sizing process to ensure precise dimensions along the entire length of the tube, with an outer diameter tolerance within ±0.05mm.
- Our tubes undergo rigorous dimensional inspection, with checks on outer diameter, weight, ovality, and length at multiple production stages to ensure suitability for installation in boiler and heat exchanger components.
2. High Temperature Resistance
- We offer a variety of high-temperature resistant materials, including 304/304H, 316/316H, 321/321H, 347/347H, and TP310S, with strict chemical composition testing to ensure compliance with ASTM A213 standards.
- Stainless Boiler Tube undergoes solution annealing heat treatment to improve the high-temperature stability of the tubes, ensuring stable operation in boilers at temperatures up to 700°C.
3. Customization Services
- TORICH can provide corresponding materials according to customer needs: 304/316 basic grades for normal operating conditions (temperature ≤450℃); 304H/316H/321H for medium and high-temperature conditions (450℃~600℃); and 347H/TP310S for high-temperature and highly corrosive conditions (above 600℃).
- We support customized dimensions, various internal and external surface treatments such as pickling and passivation, mechanical polishing, and internal wall phosphating, as well as pipe bending services.
4. Quality Control
- The tubes undergo rigorous quality testing, including dimensional inspection, mechanical performance testing, and non-destructive testing, to ensure that the tube performance meets customer requirements.
- The tubes undergo flattening and flaring tests to ensure that the tube ends are easily flared, flanged, or prepared for welding on-site, improving construction efficiency.
application areas
- Industrial and power plant boilers: Used for water-cooled wall tubes, steam pipes, superheaters, and reheaters.
- Heat exchangers and condensers: Provide efficient heat transfer.
- petrochemical and refining plants: Used for furnace tubes, cracking units, and high-temperature process piping.
Chemical Composition
| Element | C (%) | Cr (%) | Ni (%) | Mn (%) | Si (%) |
|---|---|---|---|---|---|
| TP202 | ≤0.15 | 17.0–19.0 | 4.0–6.0 | ≤2.00 | ≤1.00 |
| TP304 | ≤0.08 | 18.0–20.0 | 8.0–11.0 | ≤2.00 | ≤1.00 |
| TP309H | 0.04–0.10 | 22.0–24.0 | 12.0–15.0 | ≤2.00 | ≤1.00 |
| TP310S | ≤0.08 | 24.0–26.0 | 19.0–22.0 | ≤2.00 | ≤1.00 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) |
| TP202 | ≥515 | ≥205 | ≥40 |
| TP304 | ≥515 | ≥205 | ≥35 |
| TP309H | ≥515 | ≥205 | ≥35 |
| TP310S | ≥515 | ≥205 | ≥35 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| TP321 | It possesses resistance to intergranular corrosion, making it suitable for boiler systems that frequently experience thermal cycling and welding operations. |
| Incoloy 800H | It exhibits excellent oxidation and carburization resistance, and is used in applications requiring high long-term thermal stability, such as superheaters, reheaters, and heat exchanger tubing. |
| Inconel 625 | It offers superior strength, fatigue resistance, and corrosion resistance, making it suitable for boiler and heat exchanger applications. |
Products Show
Testing Equipment
Factory Equipment
Pickling equipment
Products Package
FAQ
Q: What grades of stainless steel can be used for ASTM A213 boiler tubes?
A: We offer various stainless steel materials such as TP202, TP304, TP304H, TP309H, TP310S, TP321, and TP347H, depending on customer applications. For applications in extremely high temperatures or chemically corrosive environments, we also offer nickel-based alloys such as Incoloy 800H, Incoloy 825, and Inconel 625.
Q: How is the quality and reliability of the tubes guaranteed?
A: TORICH subjects every batch of products to strict quality control, including: chemical composition verification, tensile strength and yield strength testing, hydrostatic or eddy current testing, ultrasonic testing, and dimensional inspection. The tubes are supplied with a factory test certificate (EN 10204 3.1), and third-party inspection reports (SGS, BV, TUV) are available upon request.
Q: Can these tubes withstand high-temperature and high-pressure boiler conditions?
A: Yes. ASTM A213 stainless steel seamless boiler tubes are specifically designed for high-temperature and high-pressure environments. Grades such as TP309H and TP310S offer excellent oxidation and creep resistance at temperatures up to 1100°C.
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