- sales@liampipes.us
- Houston , USA
Home > Stainless Steel Tubing > Stainless Steel 348H Tubing
Liam Pipes and Tubes is a reliable manufacturer and supplier of Stainless Steel 348H Tubing based in Houston, USA. We specialize in providing high-temperature and corrosion-resistant tubing solutions that cater to a variety of industries. Stainless Steel 348H is a stabilized austenitic stainless steel with a higher carbon content, specifically engineered for high-temperature structural applications. It boasts impressive resistance to intergranular corrosion, along with excellent creep strength and thermal stability. At Liam Pipes and Tubes, we take pride in ensuring that our 348H tubing meets international quality standards, making it perfect for sectors like chemical processing, power generation, aerospace, and any other industries that demand consistent performance under extreme heat and pressure.
The composition of Stainless Steel 348H Tubing includes Chromium (17–20%), Nickel (8–11%), Carbon (0.04–0.10%), and Niobium (Columbium) for stabilization. This unique blend enhances its strength at high temperatures and its resistance to carbide precipitation. In terms of mechanical properties, it features a tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of about 35%. The increased carbon content boosts creep resistance, while niobium helps stabilize the structure during welding and thermal exposure. This makes 348H an excellent choice for elevated-temperature service and critical pressure applications.
| Sizes: | 1/8″ to 24″ |
| ASTM A312 Steel grades: | TP304/304L/304H |
| ASTM A312 Schedules: | STD, XS, XXS, SCH5S, SCH10/10S, SCH20, SCH30, SCH40/40S, SCH60, SCH80/80S, SCH100, SCH120, SCH140, SCH160 |
| Standards: | ASTM A312, ASME SA312 |
| Lengths: | SRL and DRL 5meters up to 11meters available from Stock or Production. |
| Ends: | Plain/Bevelled |
| Element | Content (%) |
|---|---|
| Iron, Fe | 66 |
| Chromium, Cr | 19 |
| Nickel, Ni | 11 |
| Manganese, Mn | 2.0 |
| Silicon, Si | 1.0 |
| Nb + Ta | 0.8 |
| Cobalt, Co | 0.2 |
| Tantalum, Ta | 0.1 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.045 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 655 MPa | 95000 psi |
| Yield strength (@ strain 0.200%) | 275 MPa | 39900 psi |
| Izod impact | 120 – 160 J | 88.5 – 118 ft-lb |
| Charpy impact | 160 J | 118 ft-lb |
| Shear modulus (typical for steel) | 77.0 GPa | 11200 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 45% | 45% |
| Hardness, Brinell (converted from Rockwell B hardness) | 147 | 147 |
| Hardness, Knoop (converted from Rockwell B hardness) | 164 | 164 |
| Hardness, Rockwell B | 85 | 85 |
| Hardness, Vickers (converted from Rockwell B hardness) | 169 | 169 |
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 348H 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 348H 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 348H 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 348H Tubing is extensively utilized in high-temperature and high-pressure settings where maintaining structural integrity and corrosion resistance is crucial. It finds common applications in heat exchangers, superheaters, boiler tubes, and reactor vessels within the power generation and petrochemical sectors. In the aerospace and chemical processing industries, it’s used for components that face thermal cycling and corrosive environments. Additionally, the tubing is well-suited for furnace parts, exhaust systems, and welded structures that operate under elevated temperatures. Its stabilization and resistance to intergranular corrosion make it a top-notch material for long-lasting, high-performance service in demanding industrial applications.
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