Home > Pipe Fittings > Stainless Steel 309H Pipe Fittings
Walid Stainless, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of premium stainless steel pipe fittings for high-temperature and industrial applications. Their Stainless Steel 309H Pipe Fittings are designed for exceptional heat and oxidation resistance, making them ideal for extreme thermal environments. With high chromium and nickel content, these fittings offer superior mechanical strength and durability under prolonged high-temperature service. Manufactured under strict quality control, Walid Stainless ensures precise dimensions, smooth finishes, and reliable performance. Customers rely on Stainless Steel 309H Pipe Fittings for secure, long-lasting, and dependable connections in furnaces, heat exchangers, and petrochemical piping systems.
Stainless Steel 309H Pipe Fittings are made from a high-temperature austenitic stainless steel alloy containing approximately 23% chromium and 13% nickel. The elevated carbon content provides higher tensile strength and creep resistance compared to standard 309 grade. These fittings typically exhibit tensile strength between 520–650 MPa and hardness around 170–200 HB. Their austenitic structure ensures excellent toughness, oxidation resistance, and dimensional stability at elevated temperatures, making them suitable for high-temperature piping systems, industrial furnaces, and chemical processing 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. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 309H | 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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We offers complete testing and certification of its stainless steel 309H pipe fittings. Each product undergoes rigorous inspection, including dimensions, mechanical and chemical testing, to ensure it meets international standards. Certificates including Mill Test Certificates (MTC) have been issued to ensure adequate reliability, durability and performance in various applications
Stainless Steel 309H pipe fittings are high-temperature, corrosion-resistant components designed for extreme heat applications. They ensure durable, reliable connections in industrial furnaces, heat exchangers, and harsh environments.
SS 309H butt weld pipe fittings are high-temperature, corrosion-resistant components used for seamless, strong pipe connections. They ensure durability and reliability in extreme heat and harsh industrial environments.
SS 309H socket weld pipe fittings are high-temperature, corrosion-resistant components providing secure, leak-proof connections. They are designed for high-pressure applications, ensuring durability and reliability in extreme heat and harsh environments.
Stainless Steel 309H seamless fittings are high-strength, corrosion-resistant components crafted without joints. They offer robust, leak-proof connections in extreme heat and harsh environments, ensuring durability and reliable performance.
SS 309H cross pipe fittings are high-temperature, corrosion-resistant components that connect four pipes at a central junction. They provide strong, reliable connections in extreme heat and demanding environments.
Stainless Steel 309H tee fittings are high-temperature, corrosion-resistant components designed to connect three pipes at a right angle. They provide durable, reliable connections in extreme heat and harsh conditions.
Stainless Steel 309H Pipe Fittings are widely used in industries requiring high-temperature performance and oxidation resistance. Common applications include furnace piping, kiln systems, heat exchangers, petrochemical plants, and industrial thermal processing units. Their superior creep resistance, oxidation resistance, and mechanical strength make them ideal for welded and bolted assemblies subjected to extreme heat. Engineers and maintenance professionals rely on 309H Pipe Fittings for secure, long-term, and reliable connections in elevated-temperature environments. Walid Stainless ensures each fitting meets stringent quality standards, providing dependable performance in chemical, industrial, and high-temperature piping applications.
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