Home > Pipe Fittings > Stainless Steel 347 Pipe Fittings
Vinit Stainless is a leading manufacturer and supplier of SS 347 pipe fittings in Chennai, India, renowned for providing high-performance piping components for high-temperature and chemically aggressive conditions. SS 347, a stabilized austenitic stainless steel with Columbium (Niobium) addition, has increased resistance to intergranular corrosion. Our product line includes elbows, tees, reducers, and caps made in accordance with international standards. Vinit Stainless focuses on providing consistent quality, prompt delivery, and assured solutions for sectors like petrochemical, food processing, and power generation.
SS 347 has about 17-19% Chromium and 9-13% Nickel content, with stabilization using Columbium (Niobium) and Tantalum. The additions improve the resistance of the steel to intergranular corrosion in high-temperature applications. It has a tensile strength of about 515–750 MPa and a yield strength of about 205 MPa. SS 347 pipe fittings show good creep strength, weldability, and toughness in sub-zero temperatures as well. They are resistant to carbide precipitation, making them suitable for use where prolonged exposure to high temperatures is expected.
| 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. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 347 | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
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Stainless Steel 347 pipe fittings are corrosion-resistant components designed for high-temperature applications. They offer excellent resistance to intergranular corrosion and maintain strength in harsh environments, ensuring durable, reliable connections.
SS 347 butt weld pipe fittings are corrosion-resistant components used to join pipes with seamless, strong connections. They excel in high-temperature and aggressive environments, ensuring durability and reliability in demanding applications.
SS 347 socket weld pipe fittings are corrosion-resistant components designed for secure, leak-proof connections. They are ideal for high-pressure applications, offering durability and reliability in high-temperature and aggressive environments.
Stainless Steel 347 seamless fittings are high-strength, corrosion-resistant components crafted without joints. They ensure robust, leak-proof connections in high-temperature and harsh environments, providing long-lasting durability and performance.
SS 347 cross pipe fittings are corrosion-resistant components designed to connect four pipes at a central junction. They provide strong, reliable connections in high-temperature and aggressive environments, ensuring durability.
Stainless Steel 347 tee fittings are corrosion-resistant components used to connect three pipes at a right angle. They offer strong, reliable connections in high-temperature and harsh environments, ensuring durability.
SS 347 pipe fittings are utilized in corrosion-resistant and high-temperature–strength environments like chemical plants, refineries, and power generation equipment. They are utilized in heat exchangers, boiler plants, catalytic recovery plants, and high-temperature ducting. In the field of food processing and drug manufacturing, they provide hygienic standards while withstanding thermal stress. SS 347’s weldability to resist intergranular corrosion is a major reason it is used in piping systems that undergo regular thermal cycling. It is also used for aerospace, marine exhaust gas systems, and furnace components where resistance to heat and corrosion is paramount.
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