High-end stainless steel 309S flanges are the speciality of Harsh Metalloys, a prominent manufacturer and supplier in Mumbai, India. These flanges, which are made with premium raw materials and cutting-edge production techniques, are well-known for their longevity and resistance to corrosion and high temperatures. SS 309S Flanges are extensively utilised in demanding industrial applications like thermal plants, power generation, and chemical processing because they are made to meet international quality standards. In order to ensure total client satisfaction for both domestic and foreign clients across a range of industries, Harsh Metalloys is dedicated to providing precision-engineered products with timely service and competitive pricing.
With a low carbon content that improves weldability and reduces carbide precipitation during welding, stainless steel 309S flanges are made up of 22–24% chromium and 12–15% nickel. Even at temperatures as high as 1000°C, these flanges show outstanding resistance to oxidation and corrosion. They have an elongation of 40%, a yield strength of 205 MPa, and a tensile strength of roughly 520 MPa. When exposed to high temperatures, SS 309S Flanges retain their structural integrity and are the best choice for applications requiring robustness, dependability, and sealing performance.
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 A & B, B16.48, BS4504, BS 10, EN-1092, DIN |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Class/Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Grade | Density | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 310 | 7.9 g/cm3 | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
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We provides Stainless Steel 310 Flanges- Harsh Metalloys,which has undergone intense testing to produce top quality and performance. The flange is thoroughly tested for meeting international standards and specifications. Products supplied by us are certified by recognized authorities for traceability and reliability in each batch. With modern technology and strict quality control, we ensure durability, corrosion resistance, and good mechanical properties. Harsh Metalloys stands by the delivery of flanges with the highest level of industry standards in functionality and safety.
SS 310 slip-on flanges are stainless steel fittings designed for easy attachment to pipes. They offer excellent resistance to high temperatures and corrosion, making them ideal for demanding industrial applications.
SS 310 weld neck flanges are high-performance stainless steel components used for welding onto pipes. They provide strong, durable connections with excellent resistance to extreme temperatures and harsh environments.
SS 310 blind flanges are stainless steel plates used to seal the end of a pipeline. They offer robust resistance to high temperatures and corrosion, ensuring secure, long-lasting closures in harsh conditions.
SS 310 socket weld flanges are stainless steel components designed for secure, high-strength connections in piping systems. They provide excellent resistance to high temperatures and corrosive environments, ensuring durability and reliability.
SS 310 ring-type joint flanges are stainless steel fittings featuring a precision-machined groove for high-pressure sealing. They provide exceptional resistance to high temperatures and corrosive environments, ensuring reliable, leak-proof connections.
SS 310 forged flanges are robust stainless steel components manufactured through forging for enhanced strength and durability. They offer excellent resistance to high temperatures and corrosive environments, ensuring reliable performance in demanding applications.
Stainless steel 309S flanges are utilised in many different industries where resistance to corrosion and high temperatures are essential. They are perfect for joining pipes, pumps, valves, and other parts of furnace systems, heat exchangers, and flue gas lines. SS 309S flanges are frequently found in pressure vessels, steam pipelines, and thermal reactors in the petrochemical, chemical, and power generation industries. They are appropriate for cryogenic applications and high-temperature fluid transfer systems due to their exceptional mechanical strength and resistance to oxidation. These flanges are crucial parts of vital industrial piping networks because they guarantee safe and leak-proof connections.







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