Vinit Stainless, a reputable manufacturer and supplier of stainless steel 348 flanges with headquarters in Chennai, India, provides precisely engineered flanging solutions for demanding industrial applications. Our SS 348 flanges, which are made from premium stabilised austenitic stainless steel, are ideal for corrosive and high-temperature settings, particularly in welded pipe systems. These flanges are extensively utilised in sectors like power generation, chemical processing, and aerospace because of their exceptional mechanical performance and exceptional resistance to intergranular corrosion. Vinit Stainless guarantees that every product satisfies global quality standards, emphasising dependability, personalisation, and prompt delivery to customers across the globe.
In order to prevent intergranular corrosion, stainless steel 348 flanges are stabilised with niobium (columbium) and contain 17–19% chromium and 9–13% nickel. Better mechanical strength and weldability are provided by this austenitic stainless steel, particularly at high temperatures. With outstanding elongation and toughness, SS 348 offers a tensile strength of 515–750 MPa and a yield strength of approximately 205 MPa. Up to 800°C, these flanges maintain their strength and resistance to corrosion when used continuously. Because of their composition, which guarantees dimensional stability and structural integrity, they are perfect for use in applications where welding and heat exposure are common.
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series 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) |
| SS 348 | 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 |
| 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 % |
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SS 348 blind flanges are used to seal the end of a piping system. Crafted from stainless steel, they offer high strength, corrosion resistance, and durability, making them suitable for high-pressure applications.
SS 348 ring type joint flanges ensure a secure, leak-proof seal in high-pressure applications. Constructed from stainless steel, they feature a precision-machined ring groove for enhanced sealing performance and durability.
SS 348 forged flanges are high-strength components designed for demanding applications. Made from stainless steel through a forging process, they offer superior durability, corrosion resistance, and reliability in high-pressure systems.
348 Stainless Steel Flanges are widely used in industries where corrosion, pressure, and heat resistance are essential. High-temperature piping systems in refineries, power plants, and chemical processing facilities are typical examples of applications. Additionally, they are utilised in pressure vessels, boiler parts, heat exchangers, and aerospace systems. For connecting pipes in systems exposed to oxidation, thermal cycling, and corrosive fluids, SS 348 flanges are perfect. Long-term dependability and safety are ensured by their niobium-stabilized structure, which stops carbide precipitation during welding. To accommodate a range of operational needs, these flanges come in a variety of types, including weld neck, slip-on, blind, and socket weld.
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