Harsh Metalloys, a reputable manufacturer and supplier based in Mumbai, India, specializes in providing high-quality Stainless Steel 348 Flanges designed for high-temperature and corrosive environments. SS 348 is an austenitic stainless steel alloy that’s stabilized with Columbium (Niobium), which gives it remarkable resistance to intergranular corrosion, particularly after welding and exposure to high temperatures. These flanges are crafted in line with ASTM A182 and other international standards, ensuring they deliver precision, durability, and outstanding performance. Available in various styles like weld neck, slip-on, blind, and threaded flanges, SS 348 flanges are perfect for piping systems in the chemical, petrochemical, and power generation sectors.
Stainless Steel 348 Flanges generally consist of 17–20% Chromium and 9–13% Nickel, with Columbium added (minimum Nb content = 10xC) to prevent carbide precipitation. This alloy is known for its excellent resistance to intergranular corrosion, especially in high-temperature welded conditions. With a tensile strength ranging from 515–690 MPa and impressive creep and stress rupture resistance, SS 348 is well-suited for long-term use in elevated temperature applications. These flanges retain their strength and ductility even at high temperatures and are non-magnetic when annealed. SS 348 seamlessly combines weldability, corrosion resistance, and thermal stability, making it ideal for demanding applications.
| 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 % |
Contact us to get a quick quote for your requirement.
We offers the best quality Stainless Steel 348 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 348 slip-on flanges make alignment and welding a breeze, boasting impressive resistance to high temperatures and corrosion. They’re a fantastic choice for low-pressure piping in chemical and power plants.
SS 348 weld neck flanges excel in distributing stress and providing strength, making them ideal for high-pressure, high-temperature situations in oil, gas, and heat exchanger piping systems.
SS 348 socket weld flanges guarantee robust, leak-proof connections with outstanding heat and corrosion resistance, perfect for small-diameter, high-pressure piping in the chemical and refinery sectors.
SS 348 blind flanges securely cap pipe ends, delivering durability under pressure and heat. They’re commonly used for inspection and maintenance in process, power, and petrochemical systems.
SS 348 RTJ flanges offer metal-to-metal sealing for high-pressure, high-temperature applications, ensuring tight, vibration-resistant connections in oil, gas, and chemical transport systems.
SS 348 forged flanges provide enhanced mechanical strength and resistance to creep, making them suitable for demanding service conditions involving pressure vessels, heat exchangers, and industrial piping networks.
Stainless Steel 348 Flanges are used extensively in chemical processing, refineries, and power generation industries where resistance to high temperatures and corrosive environments is essential. Common applications include heat exchanger piping, boiler connections, superheaters, pressure vessels, and steam lines. Their stabilized nature makes them suitable for welded piping systems exposed to intergranular corrosion. SS 348 flanges are also found in aerospace components, nuclear reactors, and high-temperature exhaust systems. Their ability to withstand thermal cycling, oxidation, and mechanical stress over prolonged periods makes them a reliable choice for critical infrastructure and industrial operations.
©2024 Harsh Metalloys All Rights Reserved.
