SS 310S flanges are low-carbon stainless steel flanges that possess high resistance to oxidation and scaling at elevated temperatures. Produced by Vinit Stainless in Chennai, India, these flanges are well-suited for applications needing heat resistance and weldability. The lower carbon content decreases the possibility of sensitization during welding. SS 310S flanges provide consistent performance in alternating thermal conditions and are used in heat exchangers, furnaces, and combustion chambers. Vinit Stainless provides SS 310S flanges with high dimensional precision and regular quality, meeting industries like power generation, chemical processing, and thermal engineering.
SS 310S flanges consist of 24–26% Chromium, 19–22% Nickel, and up to 0.08% Carbon. The lower carbon level inhibits carbide precipitation during welding, thereby enhancing resistance to intergranular corrosion. SS 310S flanges have approximately 515 MPa tensile strength and 205 MPa yield strength. SS 310S shows outstanding oxidation resistance up to 1040°C and possesses high toughness even at cryogenic temperatures. The mechanical stability and thermal resistance of the alloy make it a choice for manufacturing and high-temperature services.
| Specifications | ASTM A182 / ASME SA182 |
| Size | 1/8″ NB TO 48″ NB |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 310S | 0.08 | 2.0 | 1.00 | 0.045 | 0.030 | 24.00 – 26.00 | 0.75 | 19.00 – 21.00 | 53.095 |
| Grade | Density | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 310S | 7.9 g/cm3 | 515 | 205 | 40 |
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SS 310S socket weld flanges are durable stainless steel fittings designed for high-pressure applications. They feature a socket for easy installation and offer excellent resistance to high temperatures and corrosion.
SS 310S ring-type joint (RTJ) flanges are high-strength stainless steel components designed for secure, leak-proof sealing in high-pressure, high-temperature applications. They provide excellent resistance to extreme conditions
SS 310S forged flanges are high-quality stainless steel components manufactured through a forging process. They offer exceptional strength, durability, and resistance to high temperatures and corrosion, ensuring reliable performance in demanding environments.
SS 310S flanges find extensive applications in thermal processing units, chemical processes, oil refineries, furnace lining, and combustion units. Because of their superior heat resistance and oxidation tolerance, they are best suited for welded equipment exposed to high temperatures. The low carbon variant makes them exceptionally weldable and minimizes the risk of post-weld corrosion, critical for superheated steam working industries, exhaust systems, and thermal expansion joints. Their resistance to high-temperature stress cycles guarantees long service life and reliability in continuous heating and cooling processes.
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