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Home > Stainless Steel Tubing > Stainless Steel 321H Tubing
Premium-grade stainless steel 321H tubing designed for high-temperature and high-pressure settings is available from Vipul Pipes and Tubes, a reputable manufacturer and supplier with headquarters in Chennai, India. For heat-resistant applications where intergranular corrosion resistance and exceptional mechanical strength are essential, 321H, a stabilised austenitic stainless steel, is perfect. Vipul ensures consistent quality, dimensional accuracy, and a long service life by manufacturing tubing in accordance with strict international standards. Vipul Pipes and Tubes is dedicated to providing dependable stainless steel solutions for demanding industrial operations, serving industries such as petrochemical, thermal processing, aerospace, and power generation.
In order to stabilise against carbide precipitation, stainless steel 321H tubing is an austenitic stainless steel alloy that contains 17–19% chromium, 9–12% nickel, and titanium. Additionally, it has a higher carbon content (0.04–0.10%) than standard 321 to improve strength at high temperatures. The tubing has a yield strength of about 205 MPa and a tensile strength of 515–750 MPa. Excellent creep resistance, oxidation resistance up to 870°C, and good weldability are all provided by SS 321H. When annealed, it maintains its non-magnetic properties, making it perfect for high-stress applications with high temperatures.
Specifications : ASTM A312 / ASME SA312
Outside Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size available Ex-stock
Thickness : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Size : 1/2″ NB – 24″ NB
Type : Seamless
Form: Round Pipes, Square Pipes, Rectangular Pipes.
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321H | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 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 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
By choosing Stainless Steel 321H Tubing from Vipul Pipes and Tubes, you are assured of superior quality and durability. These tubes provide outstanding corrosion resistance and strength, making them ideal for a wide range of industrial applications. Our dedication to excellent service and dependable delivery ensures customer satisfaction every time. With our expertise in stainless steel products, we deliver top-tier solutions customized to meet your specific requirements.
Vipul Pipes and Tubes, a leading supplier of Stainless Steel 321H Tubing in Chennai, India, provides a wide selection of premium pipes and tubes for diverse industrial applications. With a vast inventory and a strong focus on delivering outstanding service, they are the preferred choice for stainless steel products in the region.
At Vipul Pipes and Tubes, we provide custom sizes of Stainless Steel 321H Tubing to meet your exact specifications. Our dedicated team is here to offer tailored solutions for all your piping and tubing needs. For more information, feel free to reach out to us at sales@brydonpipesandtubes.co.uk.
Many industries, including petrochemical, power generation, aerospace, and thermal processing, use stainless steel 321H tubing in high-temperature, high-pressure settings. Boiler tubes, exhaust manifolds, heat exchangers, superheaters, furnace parts, and catalytic converter systems are among its perfect uses. It is appropriate for continuous use at high temperatures due to its resistance to oxidation and intergranular corrosion under thermal stress. Additionally, SS 321H is utilised in refineries, chemical processing facilities, and aircraft exhaust systems where thermal stability and durability are crucial. Compared to regular stainless steels, its higher carbon content guarantees superior strength retention under demanding service conditions.
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