Mbemba Stainless is a reputable manufacturer and supplier located in Kinshasa, Congo, with a focus on high-performance SMO 254 Flanges. These flanges are made from a super austenitic stainless steel that boasts exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in seawater and environments rich in chlorides. At Mbemba Stainless, they prioritize precision manufacturing, durability, and rigorous quality control to ensure they meet global standards. Their SMO 254 flanges are perfect for industries like chemical processing, desalination, marine engineering, and offshore oil and gas, where reliability and corrosion resistance are crucial.
SMO 254 Flanges consist of about 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen, creating a fantastic blend of corrosion resistance and mechanical strength. They deliver a tensile strength of around 650 MPa and a yield strength of about 300 MPa, along with impressive ductility and toughness. The high levels of molybdenum and nitrogen significantly boost their resistance to chlorides and reducing acids, making them superior to traditional stainless steels like 316L and 317L.
| 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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The SMO 254 slip-on flanges are designed for high-performance applications, featuring superior corrosion resistance and strength. Ideal for harsh environments, they ensure reliable, leak-proof connections in demanding systems.
254 SMO weld neck flanges offer exceptional resistance to corrosion and high temperatures, making them ideal for challenging environments. Their robust design ensures strong, reliable connections in critical piping systems.
SMO UNS S31254 weld neck flanges are engineered for superior corrosion and heat resistance. Perfect for extreme conditions, they provide robust, dependable connections in high-stress and high-temperature environments.
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.
We make sure the highest quality of our SMO 254 Flanges by conducting rigorous testing and inspections. Throughout the manufacturing process. These procedures guarantee the flanges durability and performance in challenging environments. Additionally we prioritize on time delivery to meet our customers deadlines. Ensuring seamless and reliable service for all orders.
These flanges are widely used in critical applications such as seawater piping systems, heat exchangers, desalination plants, chemical process equipment, and pulp and paper bleaching systems. They’re also well-suited for offshore platforms, marine structures, and environmental scrubber systems. Thanks to their ability to endure high pressure, harsh chemical environments, and extreme temperatures, SMO 254 flanges are the go-to choice for industries that require top-notch corrosion resistance and long-lasting performance.







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