Veer Flanges stands out as a trusted manufacturer and supplier of Stainless Steel 348 Flanges right in Kolkata, India. We pride ourselves on delivering top-notch flange solutions that excel in high-temperature and corrosive environments. Stainless Steel 348 is a columbium-stabilized austenitic stainless steel, closely related to grade 347, but with added niobium to boost its resistance to intergranular corrosion and prevent carbide precipitation. Our 348 flanges are crafted according to ASTM A182, ASME B16.5, and ANSI standards, ensuring they perform exceptionally well under stress and temperature changes. These flanges find their place in various industries, including chemical processing, aerospace, nuclear, marine, and high-pressure steam systems.
Stainless Steel 348 Flanges typically consist of 17–20% chromium, 9–13% nickel, and a maximum of 0.08% carbon, all stabilized with columbium (niobium) and tantalum. This stabilization helps prevent carbide precipitation, providing excellent resistance to intergranular corrosion. These flanges boast a tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of 35–40%, along with impressive creep and stress rupture strength. Thanks to their austenitic structure, they offer great weldability and toughness, even in cryogenic conditions. SS 348 maintains its mechanical stability during thermal cycling, making it perfect for pressure equipment and high-temperature piping systems.
| 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 348H | 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 % |
Veer Flanges, a leading supplier in Kolkata, India, offers an extensive selection of Stainless Steel 348 Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
Stainless Steel 348 Flanges are a go-to choice for high-temperature and high-stress applications, thanks to their outstanding resistance to oxidation and intergranular corrosion. You’ll find them in sectors like chemical processing, power generation, refinery operations, and nuclear energy systems. These flanges are perfect for boiler tubes, reactor vessels, heat exchangers, exhaust manifolds, and superheater components, especially where temperature fluctuations are common. Their stability under continuous heating also makes them suitable for aerospace structures, furnace parts, and cryogenic vessels.
Yes, we offer custom sizes for Stainless Steel 348 Flanges to meet specific project needs. Our team at Veer Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@veerflanges.co.in.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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