321 STAINLESS STEEL PIPE BRIEF INTRODUCTION 321 stainless steel pipe is an austenitic stainless steel pipe primarily composed of chromium (17-19%)?, nickel (9-12%)?, and titanium (?5×C content)?, designed to enhance high-temperature stability and intergranular corrosion resistance?. 321 stainless steel pipe standardized internationally as S32100 (ASTM), SUS321 (JIS), or TP321 (ASME)?, and widely used in petroleum, chemical, food processing, and mechanical engineering industries due to its durability under thermal stress (up to 816°C)?. The titanium addition stabilizes the alloy against chromium carbide precipitation during welding or high-temperature exposure? ?321 Stainless Steel Pipe Applications? 321 stainless steel Pipe is a versatile material widely used in industries requiring corrosion resistance, high-temperature stability, and mechanical durability. Its primary applications include: ?Petroleum & Natural Gas? High-temperature pipelines, heat exchangers, and drilling equipment due to its resistance to thermal stress (up to 816°C) and intergranular corrosion ?.?Chemical Processing? Reactors, acid-resistant containers, and corrosive fluid transport systems, leveraging its resistance to organic/inorganic acids and oxidation in aggressive environments ? ?Food & Pharmaceutical Industries? Hygienic processing equipment and storage tanks, benefiting from its non-reactive surface and ease of sterilization ?. ?Automotive? Exhaust systems and fuel lines, where it withstands high-temperature gases and resists oxidation ?. ?Medical & Construction? Surgical instruments and structural components, valued for its durability, anti-microbial properties, and load-bearing capacity ?. ? Nuclear & Power Generation? Reactor components and boiler systems (e.g., superheaters, steam pipes) due to its radiation resistance and thermal creep strength ?. The titanium-stabilized alloy (Ti ?5×C content) ensures minimized carbide precipitation during welding or prolonged high-temperature exposure, making it critical for safety-critical applications ? The titanium-stabilized alloy (Ti ?5×C content) ensures minimized carbide precipitation during welding or prolonged high-temperature exposure, making it critical for safety-critical applications ?