Harsh Metalloys is a well-known manufacturer and supplier of SMO 254 Flanges, located in Mumbai, India. These high-alloy austenitic stainless steel flanges are designed to provide exceptional corrosion resistance and durability, even in the toughest industrial settings. SMO 254 (UNS S31254) is particularly effective against pitting, crevice corrosion, and stress corrosion cracking, especially in environments rich in chlorides and acids. Harsh Metalloys offers a diverse selection of SMO 254 flanges, including weld neck, slip-on, blind, threaded, and lap joint types, all meticulously crafted to meet international standards. These flanges are perfect for use in chemical processing, offshore, marine, and desalination sectors.
SMO 254 Flanges are made up of 20% chromium, 18% nickel, 6% molybdenum, and nitrogen, which together provide remarkable strength and resistance to corrosion. The alloy boasts a tensile strength of at least 650 MPa, a yield strength of at least 300 MPa, and an elongation of at least 35%, making it ideal for high-stress and corrosive environments. Its low carbon content improves weldability and helps prevent intergranular corrosion. Thanks to its unique chemical composition, SMO 254 outperforms standard austenitic stainless steels in aggressive conditions, ensuring long-lasting structural integrity in flanged connections that are exposed to chemicals, seawater, and high temperatures.
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/2″ (15 NB) to 48″ (1200NB) |
| 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 |
| Grade | C | Mn | Si | Cu | S | P | Mo | Ni | Cr |
| SMO 254 Flanges | 0.02 | 1 | 0.08 | 0.5-1.0 | 0.01 | 0.03 | 6.0-6.5 | 17.5-18.5 | 19.5-20 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8 g/cm3 | 1320-1390 ℃ | 650 | 300 | 35 |
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254 SMO blind flanges are designed for high-corrosion resistance and strength in harsh environments. They effectively seal the end of a pipe, providing a secure, leak-proof closure in demanding applications.
SMO UNS S31254 blind flanges offer exceptional resistance to corrosion and high temperatures. Ideal for sealing pipe ends in challenging environments, they ensure a durable, leak-proof closure for critical systems.
SMO UNS S31254 orifice flanges are engineered for high durability and resistance to extreme conditions. They facilitate accurate flow measurement and control in corrosive and high-temperature environments, ensuring reliable performance.
SMO 254 Flanges are specifically designed for tough environments where traditional stainless steel flanges just can’t cut it, especially in highly corrosive and high-pressure situations. You’ll often find them in industries like marine engineering, offshore oil and gas platforms, chemical processing plants, desalination systems, pulp and paper production, and wastewater treatment facilities. These flanges are perfect for piping systems, heat exchangers, pressure vessels, and reactors that need to stand up to chlorides, acids, and saltwater. SMO 254 Flanges are particularly praised for their outstanding durability in seawater cooling systems and brine handling, and they comply with standards like ASTM A182, ASME B16.5, DIN, and EN specifications.
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