Home > Forged Fittings > Stainless Steel 321/321H Forged Fittings
Kyaw Stainless, located in Naypyidaw, Myanmar, has earned a solid reputation as a reliable manufacturer and supplier of **Stainless Steel 321/321H Forged Fittings**. These fittings are celebrated for their outstanding durability, resistance to corrosion, and ability to withstand high temperatures. With a strong focus on quality and precision engineering, Kyaw Stainless ensures that their forged fittings comply with international performance standards, especially in challenging environments. Thanks to their cutting-edge production methods and rigorous quality checks, they have become the go-to choice for industries that prioritize strength and reliability. Kyaw Stainless proudly serves a diverse range of clients with top-notch Stainless Steel 321/321H Forged Fittings built for longevity.
Stainless Steel 321/321H Forged Fittings are a type of titanium-stabilized austenitic stainless steel, featuring chromium (17–19%), nickel (9–12%), along with trace amounts of titanium, carbon, and manganese. The 321H version boasts a higher carbon content, enhancing its creep strength and temperature resistance. These materials showcase impressive mechanical properties, with a tensile strength of about 515 MPa, yield strength of 205 MPa, and good elongation. They maintain their toughness and corrosion resistance even at elevated temperatures, providing excellent protection against oxidation and intergranular corrosion after being exposed to heat.
Specifications ASTM A182 & ASME SA182
Standard ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Size 1/8” NB to 4” NB (Socketweld & Screwed-Threaded)
Class 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Type Socketweld Fittings, Screwed-Threaded Fittings
Forged Fittings Items : 45 Deg Elbow, 90 Deg Elbow, Forged Tee, Union, Full Coupling, Half Coupling, Cross, Cap, Swage Nipple, Plug, Bush, Welding Boss, Hexagonal Nipple etc.
Type Socketweld Fittings, Screwed-Threaded Fittings
Grade 321 / 321H UNS (S32100, S32109), DIN (1.4541, 1.4878)
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Contact us to get a quick quote for your requirement.
Stainless Steel 321/321H Forged Fittings find large-scale applications across industries like petrochemical, power generation, aerospace, and marine engineering. They possess the required high-temperature strength necessary for application in heat exchangers, boiler fittings, exhaust systems, and furnace equipment. The fittings find application in chemical processing plants, pressure vessels, and refineries where aggressive conditions and high temperature are prevalent. Their mechanical stability, corrosion resistance, and durability make them the choice for applications in critical piping.
Designed for high-pressure applications with socket weld connections. They offer excellent resistance to oxidation and corrosion due to their high chromium and nickel content. Ideal for elevated temperature environments.
Come in sizes ranging from 1/8″ to 6″. They provide superior resistance to intergranular corrosion, making them suitable for high-temperature and pressure applications. The threaded design ensures a secure, leak-proof connection.
Used to change the direction of piping. It maintains high corrosion resistance and strength under elevated temperatures, making it suitable for critical, high-stress applications.
Allows for branch connections at a 90-degree angle. It is designed for high resistance to heat and corrosive environments, ensuring reliability and durability in demanding conditions.
Available in sizes ranging from 1/8″ to 4″, this half coupling provides a secure connection between two pipes. It is crafted to withstand oxidation and corrosion, making it ideal for high-temperature applications.
Available from 1/2″ to 4″, connects four pipes at right angles. It features high resistance to thermal and chemical stresses, ensuring long-lasting performance in extreme conditions.
Stainless Steel 321/321H Forged Fittings find extensive application in industries that demand resistance to high-temperature oxidation and corrosive conditions. They are particularly well-suited for chemical processing plants, oil and gas refineries, heat exchangers, exhaust manifolds, and aerospace applications. Their stability against carbide precipitation makes them ideal for continuous operation at temperatures reaching up to 900°C. These forged fittings are also utilized in power generation, food processing, and pharmaceutical equipment. Thanks to their exceptional weldability and mechanical strength, they guarantee reliable performance across various demanding applications.
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