Stainless Steel 348 Pipe Fittings are high-performance fittings made for application in high-temperature and highly corrosive conditions where mechanical strength, weldability, and long-term stability are critical. These fittings are produced by renowned suppliers such as Devang Fittings in Kolkata, India. These fittings are suitable for critical applications involving resistance against intergranular corrosion and superior performance under thermal stress. With an equal stabilized content like 347 but stabilized with columbium (niobium), 348 pipe fittings are especially for nuclear and aerospace applications.
| 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. |
Stainless Steel 348 is a columbium (niobium)-stabilized austenitic stainless steel alloy with about 17–20% chromium, 8–11% nickel, and stabilized to avoid carbide precipitation during welding. The stabilization improves intergranular corrosion resistance and ensures stable performance under high temperatures. The alloy provides a tensile strength of around 550 MPa and a yield strength of around 220 MPa while maintaining satisfactory ductility, creep resistance, and mechanical properties under long-term exposure to elevated temperatures.
| 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 | 0.60-1.00 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.045 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8 g/cm3 | 0.289 lb/in³ |
| Melting point | 1427°C | 2600°F |
Devang Fittings one of the largest suppliers of Stainless Steel 348 Pipe Fittings in Kolkata, India. We specialize in providing a wide range of high-quality, durable fittings for various industrial applications. Our inventory includes elbows, tees, reducers, couplings, and other essential fittings designed to offer exceptional corrosion resistance and strength. Stainless Steel 348 is known for its cost-effectiveness and excellent mechanical properties, making it ideal for industries such as construction, chemical processing, and food processing. With a commitment to customer satisfaction, timely delivery, and competitive pricing, we are the trusted choice for Stainless Steel 348 Pipe Fittings in the India.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 348 Pipe Fittings from Devang Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
| 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 |
Yes, custom sizes are available for Stainless Steel 348 Pipe Fittings to meet specific requirements. We offer tailored solutions to ensure precise fit and performance for various applications. For more information, please contact us at sales@devangfittings.co.in.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient ( @ 0-100°C/32-212°F) | 17.3 µm/m°C | 9.61 µin/in°F |
| Thermal conductivity (@ 100°C/212°F) | 16.3 W/mK | 113 BTU in/hr.ft².°F |
Stainless Steel 348 Pipe Fittings have extensive applications in heat exchangers, pressure vessels, nuclear reactors, aerospace fittings, and chemical processing equipment. Their superior weldability and corrosion resistance in high-temperature service make them suitable for cyclic heating, corrosive fluids, or radioactive applications. These fittings are also preferred in applications demanding ASME code requirement for elevated temperature service. Their stable performance and structural integrity guarantee safe and long-term operation in the most severe industrial applications.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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