Home > Forged Fittings > Stainless Steel 310/310S Forged Fittings
Mitchell Stainless, a trusted manufacturer and supplier in Hamilton, New Zealand, provides high-quality Stainless Steel 310 and 310S forged fittings designed for high-temperature and corrosion-resistant piping applications. 310/310S is an austenitic stainless steel with excellent oxidation resistance, thermal strength, and durability, making it ideal for boilers, furnaces, heat exchangers, and other high-temperature industrial systems. Mitchell Stainless ensures each forged fitting meets strict quality standards, offering smooth finishes, precise dimensions, and reliable mechanical performance. These fittings are engineered to deliver secure, long-lasting connections in piping systems operating under extreme heat and demanding environmental conditions.
Stainless Steel 310/310S forged fittings are composed primarily of iron, with 24–26% chromium, 19–22% nickel, and small amounts of manganese, silicon, and carbon. The 310S variant has lower carbon content to improve weldability and minimize carbide precipitation. This composition provides excellent oxidation and scaling resistance at elevated temperatures, along with good high-temperature strength and moderate corrosion resistance. Chromium ensures oxidation resistance, while nickel provides toughness and thermal stability. These forged fittings maintain mechanical integrity and durability even in extreme thermal and industrial environments.
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
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 310 | 0.015 max | 2.0 max | 0.15 max | 0.020 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
| SS 310S | 0.08 max | 2.0 max | 1.00 ma | 0.045 max | 0.030 max | 24.00 – 26.00 | 0.75 max | 19.00 – 21.00 | 53.095 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
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We ensures that it has the high quality standards with respect to Stainless Steel 310/310S forged fittings by using rigorous testing and certification processes. Every product under goes detailed check-up including dimensional checks, mechanical property tests, and assessment of corrosion resistance. Our fitting is certified for relevant industry standards, which guarantees superior performance and reliability across various applications.
These fittings are highly resistant to oxidation and corrosion at elevated temperatures. They are designed for high-pressure applications and come in various sizes typically ranging from 1/2 inch to 4 inches. Socket weld fittings are ideal for applications requiring a strong, leak-proof connection.
Threaded fittings in SS 310 offer excellent resistance to oxidation and corrosion, especially in high-temperature environments. Sizes generally vary from 1/8 inch to 4 inches. They are used for connecting pipes with threads, making them suitable for pressure-tight joints.
These elbows provide excellent corrosion resistance and are ideal for applications involving high temperatures. They are available in sizes from 1/2 inch to 4 inches and are used to change the direction of flow in piping systems by 45 degrees.
Threaded tees made of SS 310 exhibit superior resistance to high-temperature oxidation and corrosion. Common sizes range from 1/4 inch to 4 inches. These tees are used to branch out pipelines and provide a secure connection in high-pressure systems.
Offering excellent corrosion resistance, threaded half couplings are used to connect two pipes in high-temperature applications. Sizes typically range from 1/8 inch to 4 inches. They are ideal for creating a connection in the middle of a pipe.
Socket weld crosses in SS 310S provide high resistance to oxidation and are used in high-pressure systems. They are available in sizes from 1/2 inch to 4 inches and allow for the intersection of four pipes, ensuring a robust connection.
Stainless Steel 310/310S forged fittings are widely used in high-temperature industrial equipment, including boilers, furnaces, heat exchangers, chemical processing plants, and petrochemical systems. Typical applications include elbows, tees, reducers, flanges, and couplings in piping systems exposed to high thermal and oxidative stress. They are also used in maintenance and repair projects requiring durable, corrosion-resistant, and heat-stable piping components. In New Zealand’s industrial and fabrication sectors, 310/310S forged fittings are valued for producing long-lasting, reliable assemblies that withstand extreme temperatures, maintain structural integrity, and deliver consistent performance under challenging operational conditions.







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