Seamless Stainless Steel TP316Ti |UNS S31635|1.4571 Tube

Seamless Stainless Steel TP316Ti Tubes (UNS S31635 / W.Nr. 1.4571) are premium-grade austenitic solutions engineered for exceptional resistance to localized corrosion and oxidation at elevated temperatures. As a premier manufacturer based in Fujian, China, with advanced production bases in Songyang, Tengqi produces high-integrity seamless tubing that strictly complies with ASTM A213, ASTM A312, and DIN 17458 international standards.

Distinguished by the strategic addition of Titanium (Ti), our TP316Ti tubing prevents chromium carbide precipitation during prolonged exposure to the 425°C - 815°C range. This stabilization ensures superior resistance to intergranular corrosion (IGC) and pitting in chloride-rich environments, making them indispensable for mission-critical applications in heat exchangers, offshore marine hardware, and exhaust systems. Through advanced cold-drawing and precise solution annealing, Tengqi ensures every tube maintains a uniform microstructure and optimized creep strength for the most demanding industrial conditions.

“Our precision-controlled Titanium-to-Carbon ratio ensures that carbides are fully stabilized, preventing sensitization even after welding and high-temperature service.”