ASTM A376 TP347H Seamless Austenitic Steel Pipe for Power Plant High Temperature Service​

YUHONG GROUP​​ specializes in manufacturing ​​high-temperature resistant steel products​​ for critical power generation applications. With over 35 years of expertise in seamless steel pipe production, our ​​ASTM A376 TP347H Seamless Austenitic Steel Pipes​​ deliver exceptional performance in power plant boiler systems.

Chemical Composition of TP347H (UNS S34709)​

​​Mechanical Properties of TP347H (UNS S34709)​

TP347H Testing Requirements Summary​

​​ASTM A376 TP347H Seamless Austenitic Steel Pipe - Application Advantages​

1. Superior High-Temperature Performance for Power Plants​​

​​Excellent creep resistance​​ at temperatures up to 750°C (1382°F) - ideal for superheater and reheater applications
​​Outstanding oxidation resistance​​ ensures long-term stability in high-temperature flue gas environments

​​2. Enhanced Safety and Reliability in Critical Systems​​

​​Seamless construction​​ provides uniform wall thickness, eliminating weak points under extreme pressure conditions
​​Nb-stabilized composition​​ prevents intergranular corrosion in continuous high-temperature service

​​3. Cost-Efficient Power Generation Solution​​

​​Extended service life​​ reduces maintenance frequency and replacement costs
​​Optimized thermal efficiency​​ helps power plants maintain optimal operating parameters

​​4. Material Characteristics Supporting Power Applications​​

​​High temperature strength​​ maintains structural integrity under thermal cycling conditions
​​Corrosion resistance​​ suitable for various fuel types, including coal, gas, and biomass

​​5. YUHONG Quality Assurance​​

​​Full compliance​​ with ASTM A376/ASME SA376 specifications
​​Comprehensive testing,​​ including hydrostatic, ultrasonic, and eddy current examinations
​​Custom sizing​​ available from OD 1/2" to 24" with various schedule thicknesses