Stainless steel 321 pipe fittings are titanium-stabilized austenitic stainless steel components designed for connecting and redirecting piping systems in high-temperature and corrosive environments. They offer excellent corrosion resistance, high strength, and durability, making them ideal for petrochemical, power, and industrial applications.
Product Parameters
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Category |
Specification / Description |
|
Product Name |
Stainless Steel 321 Pipe Fittings |
|
Material Grade |
Stainless Steel 321 (UNS S32100 / W.Nr. 1.4541) – Titanium stabilized austenitic stainless steel |
|
Manufacturing Standards |
ASTM A403 WP321 / WP321H; ASME B16.9, B16.28, MSS SP-43 |
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Available Types |
Elbows (45°, 90°, 180°), Tees, Reducers, Caps, Stub Ends, Crosses |
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Size Range |
Seamless: ½" – 24" |
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Wall Thickness / Schedules |
SCH 10 – SCH 160, XXS, or customized |
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Surface Finish |
Pickled, Polished, or Custom Surface Treatment |
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Connection Type |
Butt-weld / Socket weld / Threaded options |
Features of Stainless Steel 321 Pipe Fittings
Superior Corrosion Resistance
Alloy 321 contains 17–19% chromium and is titanium-stabilized, effectively preventing chromium carbide formation and improving intergranular corrosion resistance. It performs exceptionally well in acidic and oxidizing environments.
Outstanding High-Temperature Strength
With a service temperature range of approximately 425 °C–900 °C, 321 stainless steel maintains excellent strength and stability under high heat and pressure. It is ideal for applications in power generation, petrochemical, and boiler systems.
Excellent Weldability and Formability
The austenitic structure allows smooth welding and fabrication without cracking or distortion. It supports various welding methods, including TIG, MIG, and resistance welding.
Dimensional Accuracy and Surface Quality
Produced through precision forming and heat treatment, the fittings ensure uniform dimensions, smooth internal surfaces, and tight tolerance control for reliable sealing and installation.
Versatile Industrial Applications
Widely used in power plants, chemical processing, oil & gas, aerospace, and high-temperature pipelines where durability, corrosion resistance, and thermal stability are critical.
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