Harsh Metalloys, a reputable manufacturer and supplier based in Mumbai, India, is dedicated to delivering high-quality Stainless Steel 321 Pipes designed for high-temperature and corrosion-resistant applications. SS 321 is a titanium-stabilized austenitic stainless steel, celebrated for its outstanding resistance to intergranular corrosion and high-temperature oxidation. These pipes are crafted in line with international standards like ASTM A312 and come in seamless, welded, and ERW options. With excellent weldability and formability, Stainless Steel 321 pipes are perfect for industries such as thermal processing, aerospace, chemical, and petrochemical, where thermal stability and durability are essential.
Stainless Steel 321 Pipes are made up of 17–19% Chromium, 9–12% Nickel, and a minimum Titanium content that is five times the carbon content for stabilization. This specific composition helps prevent carbide precipitation during welding and boosts resistance to intergranular corrosion. These pipes boast a tensile strength ranging from 515 to 750 MPa and a yield strength of about 205 MPa. They maintain their structural integrity at high temperatures up to 870°C (1600°F), providing good creep resistance and excellent oxidation resistance. In their annealed state, SS 321 pipes are non-magnetic and are well-suited for demanding applications that involve heat and pressure.
| Standard | ASTM A312, A358 / ASME SA312, SA358 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Grade | C | N | Ni | Si | P | S | Mn | Cr | TI | |
|---|---|---|---|---|---|---|---|---|---|---|
| SS 321 | Min | – | – | 9.00 | – | – | – | – | 17.0 | 5(C+N) |
| max | 0.08 | 0.10 | 12.00 | 1.00 | 0.045 | 0.030 | 2.00 | 19.0 | 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 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 Pipes 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.
321 square pipes are known for their impressive corrosion resistance and mechanical strength, making them a great choice for structural, architectural, and high-temperature applications in the chemical and aerospace sectors.
These 321 seamless pipes excel in creep resistance and durability even at high temperatures, which makes them perfect for heat exchangers, boilers, and refinery systems.
The 321 ERW pipes are designed to provide precise dimensions and corrosion resistance, making them ideal for low-to-medium pressure pipelines in food processing, automotive, and general industrial settings.
With their high structural strength and heat resistance, 321 LSAW pipes are perfect for transporting gases or fluids in high-temperature oil, gas, and power systems.
These 321 round pipes boast excellent oxidation resistance and formability, and are commonly used in high-temperature exhaust systems, aerospace applications, and chemical process piping.
Combining outstanding corrosion resistance with thermal stability, 321 welded pipes are well-suited for furnace parts, heat exchangers, and the transport of high-temperature fluids.
Harsh Metalloys is a leading supplier, and stockist of high-quality Stainless Steel 317 Pipes in India, Mumbai. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
Stainless Steel 321 Pipes are widely used in high-temperature environments such as exhaust manifolds, furnace components, heat exchangers, and expansion joints. Their titanium stabilization makes them suitable for welded structures exposed to carbide precipitation. These pipes are ideal for industries including aerospace, chemical processing, power generation, and oil & gas. SS 321 pipes offer excellent performance in thermal cycling conditions and resist scaling and oxidation at high service temperatures. They are dependable for transporting corrosive fluids and gases in extreme environments, ensuring long service life and structural reliability in both industrial and commercial applications.
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