- sales@liampipes.us
- Houston , USA
Home > Stainless Steel Tubing > Stainless Steel 321H Tubing
Liam Pipes and Tubes is a reputable manufacturer and supplier of Stainless Steel 321H Tubing based in Houston, USA. We specialize in providing top-notch tubing solutions that excel in high-temperature and high-pressure settings. Stainless Steel 321H is a stabilized austenitic stainless steel with a higher carbon content, specifically engineered to deliver outstanding creep resistance and structural stability during extended exposure to elevated temperatures. At Liam Pipes and Tubes, we ensure that our 321H tubing meets international standards, guaranteeing consistent quality, durability, and performance. Our products find applications across various industries, including aerospace, petrochemical, power generation, and refining, where long-lasting thermal and mechanical reliability is crucial.
The composition of Stainless Steel 321H Tubing includes Chromium (17–20%), Nickel (9–13%), Carbon (0.04–0.10%), and Titanium for stabilization, along with Manganese, Silicon, and trace elements. This specific makeup helps prevent carbide precipitation during welding and enhances performance at high temperatures. The mechanical properties feature a tensile strength of around 515 MPa, yield strength of 205 MPa, and an elongation of 35%. The increased carbon content boosts creep strength, making 321H tubing ideal for thermal cycling and high-stress environments, especially in welded structures.
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 Liam 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.
Liam Pipes and Tubes, a leading supplier of Stainless Steel 321H Tubing in Houston , USA, 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 Liam 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@liampipes.us
Stainless Steel 321H Tubing is commonly utilized in high-temperature applications like heat exchangers, superheaters, boiler tubes, and furnace components. It’s particularly prized in sectors such as petrochemical, power generation, oil & gas, and aerospace, where long-term thermal resistance and structural integrity are vital. Additionally, this tubing is used in exhaust manifolds, expansion joints, and chemical processing equipment. Thanks to its titanium stabilization, it resists intergranular corrosion after welding, and the high carbon content enhances strength at elevated temperatures, making 321H a dependable choice for continuous high-heat and corrosive environments.
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