Home > Pipe Fittings > Stainless Steel 309H Pipe Fittings
Kyaw Stainless, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, specializes in high-quality Stainless Steel 309H Pipe Fittings. These fittings are known for their remarkable strength and durability, making them perfect for high-temperature and corrosive environments. Crafted from top-notch materials and utilizing cutting-edge production technology, they offer exceptional resistance to oxidation and scaling. Renowned for their precision, toughness, and reliability, Stainless Steel 309H Pipe Fittings find extensive use in demanding industrial applications. Kyaw Stainless guarantees that all products meet international quality standards, catering to industries like petrochemical, chemical processing, power generation, and thermal plants with outstanding fitting solutions.
Stainless Steel 309H Pipe Fittings mainly consist of chromium (22–24%), nickel (12–15%), and carbon (0.04–0.10%), along with smaller amounts of manganese (≤2%), silicon (≤1%), phosphorus (≤0.045%), and sulfur (≤0.03%). The higher carbon content boosts creep strength and temperature resistance, while the increased levels of chromium and nickel enhance corrosion and oxidation resistance. These fittings boast a tensile strength of around 515 MPa, yield strength of 205 MPa, and an elongation of 40%. They maintain excellent mechanical stability, toughness, and resistance to thermal fatigue, even when exposed to high heat for extended periods.
| 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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Stainless Steel 309H Pipe Fittings are commonly used in high-temperature and corrosive environments due to their excellent resistance to oxidation and heat. They are widely used in industries such as petrochemical, chemical processing, power generation, and aerospace. Applications include heat exchangers, boilers, gas turbines, exhaust systems, and furnace components. These fittings are ideal for connecting pipes, valves, and other equipment in critical systems that operate under extreme conditions, ensuring durability, long-term performance, and reliability in industries that require high-performance, heat-resistant materials.
High-temperature, corrosion-resistant components designed for extreme heat applications. They ensure durable, reliable connections in industrial furnaces, heat exchangers, and harsh environments.
High-temperature, corrosion-resistant components used for seamless, strong pipe connections. They ensure durability and reliability in extreme heat and harsh industrial environments.
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.
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.
High-temperature, corrosion-resistant components that connect four pipes at a central junction. They provide strong, reliable connections in extreme heat and demanding environments.
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 perfect for high-temperature and corrosive service conditions. They’re commonly used in furnaces, boilers, heat exchangers, and flue gas systems due to their outstanding resistance to oxidation and scaling. Industries such as petrochemical, power generation, cement, and refineries rely on these fittings to connect pipelines that transport hot gases, steam, and corrosive fluids. Their enhanced mechanical strength and creep resistance make them ideal for long-term use in thermal processing and combustion systems, ensuring reliability and performance.







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