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{"title":"Stainless Steel Seamless Pipe ASTM A312 TP304, Oil and Gas Usage","imgUrl":"https:\/\/img.chinax.com\/nimg\/d7\/6a\/ce7addeaf145b837804b99d07cf3-200x200-1\/stainless_steel_seamless_pipe_astm_a312_tp304_2c_oil_and_gas_usage.jpg","attrs":{"Place of Origin":"China","Brand Name":"YUHONG","Certification":"ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001-2008","Minimum Order Quantity":"100KGS"}}
ASTM A376 TP347H Seamless Stainless Steel Pipe for High Temp & Pressure Industrial Applications
Product Brief
ASTM A376 / ASME SA376 TP347H (UNS S34709) seamless stainless steel pipe, austenitic material stabilized with niobium (Nb) + tantalum (Ta), is designed for high-temperature and high-pressure industrial scenarios. It features excellent creep resistance, anti-intergranular corrosion, and stable mechanical properties at elevated temperatures (≤900℃). Made of seamless process, it has precise dimensions, high pressure-bearing capacity, and is widely used in boilers, heat exchangers, and high-temperature fluid transport systems in petrochemical, power generation and other industries.
Chemical Composition (wt%)
Material Grade
C
Cr
Ni
Nb+Ta
Mn
Si
P
S
TP347H (UNS S34709)
0.04-0.10
17.0-19.0
9.0-13.0
8*C-1.00
≤2.00
≤1.00
≤0.045
≤0.030
Available Tests
Test Type
Standard
Eddy Current Test (ECT)
ASTM A376
Hydrostatic Pressure Test
ASTM A376
Tensile Strength & Creep Test
ASTM E8/E8M, ASTM E139
Hardness Test
ASTM E10
Chemical Composition Test (PMI)
Spectrometer
Corrosion Resistance Test
ASTM G48
Core Product Advantages
High-Temperature Performance: TP347H stabilized with Nb+Ta, excellent creep resistance at high temperature (≤900℃), no deformation or failure after long-term service under high temp & pressure.
Corrosion Resistance: Strong anti-intergranular corrosion and medium corrosion, suitable for harsh industrial environments such as petrochemical and high-temperature fluid transport.
Pressure-Bearing Capacity: Seamless production process, uniform structure, high tensile strength and toughness, strong pressure-bearing capacity, not easy to burst or leak.
Dimensional Precision: Strictly comply with ASTM A376 standard, precise OD/WT tolerance, good interchangeability, easy to assemble with other components.
Durability: Nb+Ta stabilization enhances material stability, service life is 2-3 times that of ordinary stainless steel pipes, reducing maintenance and replacement costs.
Versatility: Widely used in boilers, heat exchangers, petrochemical, power generation and other industries, supporting custom specifications and end treatments.
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...