Home > Pipe Fittings > Stainless Steel 321 Pipe Fittings
Harsh Metalloys, a prominent manufacturer and supplier based in Mumbai, India, specializes in top-notch Stainless Steel 321 Pipe Fittings that excel in high-temperature and corrosive settings. SS 321 is a titanium-stabilized austenitic stainless steel, renowned for its ability to resist intergranular corrosion after welding. These pipe fittings are crafted to meet international standards like ASTM A403 and come in various forms, including elbows, tees, reducers, caps, and stub ends. Perfect for use in the chemical, thermal, aerospace, and power generation sectors, SS 321 pipe fittings promise long-lasting durability, easy weldability, and reliable structural integrity.
Stainless Steel 321 Pipe Fittings are composed of 17–19% Chromium, 9–12% Nickel, and Titanium (at least five times the carbon content) to avoid sensitization during welding. These fittings boast impressive mechanical properties, with tensile strength ranging from 515–750 MPa and yield strength around 205 MPa. In their annealed state, SS 321 fittings are non-magnetic and perform exceptionally well at temperatures up to 870°C (1600°F). They resist oxidation, scaling, and intergranular corrosion, providing high strength and toughness, even when exposed to prolonged thermal stress and pressure in harsh environments.
| Grades | 201, 202, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Size | ½”NB to 48″NB in |
| Schedule | Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 321 | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
Contact us to get a quick quote for your requirement.
At Harsh Metalloys, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 321 Pipe Fittings in India, Mumbai. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Mumbai, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
Stainless Steel 321 pipe fittings are high-quality components known for their excellent heat resistance and corrosion resistance. Ideal for high-temperature applications, they provide durability and reliability in industrial settings.
SS 321 Butt Weld pipe fittings are durable components used to join pipes through welding. Made from stainless steel 321, they offer excellent heat resistance and corrosion resistance for industrial applications.
SS 321 Socket Weld pipe fittings connect pipes via a socket weld. Made from stainless steel 321, they provide superior heat resistance and corrosion resistance, making them suitable for high-temperature environments.
Stainless Steel 321 seamless fittings are high-quality components without welds, offering excellent heat and corrosion resistance. They are ideal for high-temperature applications, providing durability and reliability in harsh industrial conditions.
SS 321 cross pipe fittings connect four pipes at a junction. Made from stainless steel 321, they offer excellent heat and corrosion resistance, ensuring durability and strength in high-temperature industrial applications.
Stainless Steel 321 tee fittings create T-junctions by connecting three pipes. Made from stainless steel 321, they provide excellent heat and corrosion resistance, ensuring durability and performance in high-temperature applications.
Stainless Steel 321 Pipe Fittings are widely used in industries that involve exposure to high temperatures and corrosive media. These include heat exchanger systems, refinery pipelines, power plants, chemical process vessels, boiler components, and exhaust manifolds. SS 321 is particularly suited for applications where welding is required, without the risk of carbide precipitation and subsequent corrosion. With excellent strength and oxidation resistance, these fittings ensure secure connections and optimal fluid flow in both continuous and intermittent high-temperature operations. Their durability and resistance to thermal fatigue make them a reliable solution for critical piping infrastructure.
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