High-performance stainless steel 348 pipe fittings designed for high-temperature and high-stress applications are available from Harry Fittings, a renowned manufacturer and supplier with headquarters in Houston, USA. Niobium-stabilized austenitic stainless steel SS 348 is resistant to intergranular corrosion even after welding and high temperature exposure. It is extensively utilised in power generation, chemical processing, and aerospace systems. Vipul Pipes and Tubes ensures long-lasting performance in oxidising and corrosive environments by manufacturing elbows, tees, reducers, caps, and crosses with excellent weldability and precise tolerances, all in full compliance with ASTM A403 and other international standards.
| 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. |
Vipul Pipes and Tubes’ stainless steel 348 pipe fittings are made of nickel (9–13%), chromium (17–19%), and niobium-stabilized to improve resistance to weld deterioration and sensitisation. Tensile strength ≥515 MPa, yield strength ≥205 MPa, and elongation ≥30% are all displayed by these fittings. In high-temperature and high-pressure systems, SS 348 retains its structural integrity due to its exceptional resistance to oxidation up to 1500°F (815°C). It is particularly well-suited for thermal cycling and welded configurations used in demanding chemical and thermal processing applications due to its enhanced creep and stress rupture properties.
| 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 |
Harry Fittings one of the largest suppliers of Stainless Steel 348 Pipe Fittings in Houston, USA. 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 USA.
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 Harry 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 |
SS 348 Pipe Fittings offer excellent resistance to intergranular corrosion, particularly after welding, thanks to the addition of titanium. This makes them ideal for high-temperature and pressure applications in industries like chemical processing, aerospace, and power generation. They maintain their strength and durability at elevated temperatures, ensuring long-lasting performance. Stainless Steel 348 also provides excellent oxidation resistance, making it suitable for harsh environments. With good weldability and formability, these fittings are easy to fabricate and ensure reliable, efficient operation in demanding industrial conditions.
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@harryfittings.us.
| 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 from Vipul Pipes and Tubes are extensively utilised in nuclear reactor systems, petrochemical refineries, chemical processing facilities, pharmaceutical equipment, and aerospace engine components. They are perfect for high-temperature piping systems, exhaust systems, and heat exchanger connections because of their resistance to oxidation, intergranular corrosion, and thermal fatigue. Applications that call for welded assemblies free from the possibility of carbide precipitation benefit greatly from SS 348. For harsh settings that demand mechanical strength and outstanding corrosion resistance over an extended service life, these pipe fittings offer a dependable and long-lasting solution.
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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