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ASME SA213 TP316 (UNS S31600) Stainless Seamless Tube for Heat Exchanger and Boiler
ASME SA213 TP316 (UNS S31600) is a seamless austenitic stainless steel tube specifically designed for high-temperature service in heat exchangers, boilers, and superheaters. It offers excellent corrosion resistance, high-temperature strength, and oxidation resistance due to its molybdenum-enhanced composition. This material complies with the ASME Boiler and Pressure Vessel Code, ensuring reliability in critical thermal applications.
1.Chemical & Mechanical Properties
| ASME SA213 TP316 Chemical Composition (%) |
| C |
Mn
|
P |
S |
Si
|
Cr |
Ni |
Mo |
N |
| ≤0.08% |
≤2.00% |
≤0.045% |
≤0.030% |
≤1.00% |
16.0%~18.0% |
10.0%~14.0% |
2.00%~3.00% |
/ |
Mechanical Properties
| Property |
Standard Value (Annealed) |
| Tensile Strength |
≥515 MPa (75 ksi) |
| Yield Strength |
≥205 MPa (30 ksi) |
| Elongation |
≥35% |
| Hardness |
≤ HRB 90(192HBW) |
2. Key Adventages
- Superior Corrosion Resistance
Molybdenum-enhanced (2%~3% Mo) resists pitting and crevice corrosion in chloride environments.
High chromium-nickel content resists acids, alkalis, and oxidation in harsh conditions (e.g., chemical, marine).
- High-Temperature & Pressure Performance
Maintains strength at high temperatures with excellent oxidation/creep resistance for boilers & heat exchangers.
The maximum temperature resistance can reach 1040℃ (1900℉).
- Excellent Fabrication & Weldability
Seamless cold/hot forming allows bending/flaring without cracking.
Compatible with TIG/MIG welding, no post-weld heat treatment required.
- Long Service Life & Low Maintenance
Smooth seamless interior minimizes scaling, reducing maintenance costs.
Long-term cost efficiency due to extended service life.
3. Key Applications
-
Power Generation Industry
Power station boiler systems: Superheaters, reheaters, and main steam pipes for supercritical/ultra-supercritical boilers.
Nuclear power equipment: Auxiliary cooling systems and steam generator heat transfer tubes.
Refining units: Pipes for high-temperature/pressure reactors (e.g., catalytic cracking, hydrocracking).
Chemical heat exchangers: Shell-and-tube/plate heat exchanger cores resistant to acids, alkalis, and salts.
Desalination systems: Chloride-resistant pipes for MSF and RO plants.
Marine propulsion systems: Exhaust pipes for gas turbines, fuel boiler tubes.
-
Environmental & New Energy
Waste-to-energy plants: Flue gas heat recovery pipes with high-temperature corrosion resistance.
Hydrogen energy equipment: Hydrogen-resistant pipes for electrolyzers.
Stainless Steel Seamless Tube Testing
- DFARS compliant
- EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- 100% Radiography Test Report---If welded type
- Raw Materials Certificate
- Third Party Inspection Report
- Fumigation Certificates
- Heat Treatment Charts
- HS Code Commercial Invoice
- Form A for Generalized System of Preferences (GSP)
- Manufacturer Test Certificate
- Moisture testing
- Surface roughness measurement
- Laboratory Test Certificate from Govt. Approved Lab
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