TP347H Stainless Steel Pipe – High-Temperature, Corrosion-Resistant Alloy | KCM

The TP347H Stainless Steel Pipe by KCM is engineered for superior performance in high-temperature and corrosive environments. Manufactured from niobium-stabilized austenitic stainless steel, TP347H offers enhanced creep strength, thermal stability, and resistance to intergranular corrosion—making it suitable for continuous operation in environments up to 1000°C.

This pipe is ideal for boiler tubes, superheaters, reheaters, heat exchangers, and chemical processing systems where oxidation resistance and structural integrity are critical. The stabilizing element (niobium) prevents carbide precipitation at grain boundaries during high-temperature exposure, ensuring long-term resistance to sensitization and corrosion.

Available in a wide range of sizes and wall thicknesses, KCM’s TP347H pipes are precision-engineered, dimensionally accurate, and compliant with international standards, delivering reliable performance in demanding industrial environments.

Specifications:
– Product Type: TP347H Stainless Steel Pipe
– Size Range: 1/2” to 24” OD (DN15–DN600)
– Wall Thickness: SCH 5S to SCH XXS or custom
– Material Grade: TP347H (UNS S34709)
– Standards: ASTM A312 / A213 / A269 / ASME SA312
– Pipe Type: Seamless or Welded
– Length: Single Random, Double Random, or Custom Cut
– Temperature Resistance: Up to 1000°C (1832°F)
– Finish: Annealed, Pickled, Polished, or Bright Annealed
– End Connections: Plain End, Beveled End, Threaded (on request)
– Corrosion Resistance: Excellent against intergranular corrosion and high-temperature oxidation
– Tensile Strength: ≥515 MPa (per ASTM A312)
– Yield Strength: ≥205 MPa
– Elongation: ≥35%
– Hardness: ≤90 HRB

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