Mbemba Stainless is a well-known manufacturer and supplier located in Kinshasa, Congo, specializing in top-notch SMO 254 Fasteners. These fasteners are crafted from a high-alloy austenitic stainless steel that offers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in environments rich in chlorides and seawater. At Mbemba Stainless, they prioritize precision engineering, durability, and strict compliance with global standards. Their SMO 254 fasteners are perfect for various industries, including chemical processing, marine, pulp and paper, and offshore applications, where mechanical strength and corrosion resistance are essential.
The composition of SMO 254 Fasteners includes about 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen, striking a fantastic balance between corrosion resistance and strength. They boast a tensile strength of approximately 650 MPa and a yield strength of around 300 MPa, along with impressive ductility and impact toughness. The high levels of molybdenum and nitrogen in the alloy significantly boost its resistance to chlorides, acids, and oxidizing agents, making it a superior choice compared to traditional stainless steels like 316L or 317L.
Standard : DIN, ASTM, BS and all International Standards
Size : 3 mm to 200 mm
Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size : M1 – M64 | #4 to 3″ | Custom Sizes
Length : M02 to M33
| Grade | C | Mn | Si | S | Cu | Ni | Cr | N | Mo | P |
| SMO 254 | 0.02 max | 1 max | 0.8 max | 0.01 max | 0.5 – 1 | 17.5 – 18.5 | 19.5 – 20.5 | 0.18 – 0.22 | 6 – 6.5 | 0.03 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SMO 254 | 8.0 g/cm3 | 1320-1390°C | 650 | 300 | 35 % |
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SMO 254 nuts offer exceptional corrosion resistance in highly aggressive environments, including seawater. Available in sizes ranging from M6 to M30 and various dimensions, they ensure secure fastening with high strength and durability.
SMO 254 Stud Bolts provide superior corrosion resistance against chloride-induced stress. They are commonly available in lengths from 50 mm to 300 mm and diameters from M6 to M30, designed for high-pressure and high-temperature applications.
SMO 254 Bolts deliver excellent resistance to pitting and crevice corrosion. Standard sizes range from M6 to M30, with lengths from 20 mm to 200 mm. These bolts are ideal for demanding environments requiring high strength and durability.
SMO 254 threaded rods offer outstanding resistance to corrosion and high temperatures. Typically available in diameters from M6 to M30 and lengths up to 3 meters, they are used for various construction and industrial applications.
SMO 254 screws provide exceptional corrosion resistance and are used in marine and chemical environments. Sizes generally range from M3 to M20, with lengths from 10 mm to 150 mm, suitable for precise fastening needs.
SMO 254 washers ensure high corrosion resistance and are used to distribute load and prevent damage. They are available in sizes from M6 to M30, with thicknesses typically ranging from 1 mm to 5 mm, suitable for various applications.
All our products undergo quality standards tests such as material tests, performances tests, and corrosion resistance tests. They are realized by thorough third-party inspections so as to ascertain their credibility. We also guarantee on-time delivery as we ensure promptness in our operations so that customers will receive orders right on time according to their project schedules and quality standards.
SMO 254 Fasteners find their place in challenging environments such as seawater handling systems, desalination plants, chemical processing equipment, offshore oil platforms, and heat exchangers. They are also commonly used in marine applications, paper and pulp bleaching facilities, and flue gas cleaning systems. Their reliability under harsh chemical exposure, high pressure, and temperature conditions makes SMO 254 fasteners the go-to option for industries that need durable, corrosion-resistant fastening solutions.
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