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The ASTM A269 TP304LN tube is an austenitic stainless steel tubing manufactured according to the ASTM A269 / ASME SA269 specification for corrosion-resistant and low-temperature service. Grade TP304LN (UNS S30453) is a nitrogen-strengthened version of 304L stainless steel that provides improved mechanical strength while maintaining excellent corrosion resistance and weldability.
ASTM A269 TP304LN stainless steel tubes offer superior resistance to oxidation, pitting, and general corrosion due to their chromium and nickel content. The addition of nitrogen enhances yield strength and structural stability without compromising ductility or toughness. These tubes are commonly produced in seamless and welded forms with finishes such as bright annealed, pickled, and polished to meet industrial requirements.
