**SMO 254 Nuts** are top-notch fasteners crafted from SMO 254, a super-austenitic stainless steel alloy celebrated for its outstanding resistance to corrosion, particularly in environments rich in chlorides. These nuts are engineered for high-demand applications where traditional stainless steels like 304 or 316L might falter due to issues like pitting, crevice corrosion, or stress corrosion cracking. Thanks to their high molybdenum content (around 6%) and nitrogen, SMO 254 nuts deliver exceptional strength, toughness, and a longer service life even in extreme mechanical and chemical conditions.
When it comes to mechanical properties, SMO 254 nuts boast high tensile strength, impressive elongation, and solid fatigue resistance, making them ideal for both static and dynamic loading scenarios. They also hold their ground under high temperatures and aggressive chemical exposure. With their excellent weldability and machinability, SMO 254 nuts can be easily integrated into complex assemblies without sacrificing structural integrity or corrosion resistance.
| Range | : | M10 TO M100 |
| Standards | : | ASTM / ASME SB 479 |
| Length | : | UPTO 5 METERS |
| Grade | : | UNS No. S31254 |
| Specification | : | IS, BS, ASTM |
| Type | : | Hot Forged and Cold Forged |
| SMO 254 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 17.5 – 18.5 | 0.02 max | 6 – 6.5 | 1 max | 0.8 max | – | 0.5 – 1 | 0.01 max | 0.03 max | 19.5 – 20.5 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
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Corrosion-resistant product designed for extreme environments. SMO 254 Nuts are available in sizes from M6 to M36, ideal for marine, chemical processing, and offshore applications requiring superior resistance to pitting and crevice corrosion.
SMO 254 Coupling Nuts are engineered for joining threaded rods in harsh conditions. Available in sizes from M6 to M36, they provide strong connections for marine and chemical processing systems, ensuring durability and resistance to severe environments.
Featuring a nylon insert for secure fastening, SMO 254 Nylon Insert Nuts come in sizes from M6 to M24. They are perfect for applications in corrosive environments where vibration resistance and a stable connection are essential.
SMO 254 Flange Hex Nuts offer enhanced load distribution with integrated flanges. Available in sizes from M6 to M24, they are suitable for heavy-duty applications in marine and chemical industries, providing robust support and corrosion resistance.
Engineered for high-stress applications, SMO 254 Heavy Hex Nuts are available in sizes from M6 to M36. They are ideal for use in demanding environments like offshore rigs and chemical processing facilities, offering exceptional strength and corrosion resistance.
SMO 254 Square Nuts feature a large surface area for effective torque application. Available in sizes from M6 to M24, they are ideal for secure fastening in tight spaces, particularly in marine and industrial settings where superior corrosion resistance is required.
**Applications of SMO 254 Nuts** are diverse, spanning industries like chemical processing, marine engineering, offshore oil and gas platforms, desalination plants, pulp and paper manufacturing, and pharmaceutical equipment. They shine in systems that come into contact with seawater, acids, and high-chloride environments. When paired with SMO 254 bolts, washers, and other fasteners, these nuts ensure secure, long-lasting connections in settings where safety, reliability, and corrosion resistance are paramount. Their high performance also makes them a cost-effective choice compared to pricier nickel-based alloys in many challenging service applications.
The use of SMO 254 nuts is in high-temperature conditions due to the excellent resistance it offers against holes and cracks, as well as corrosion. Typical applications include marine structures, chemical plants, and so oil products for marine use. Seawater resistance, chlorinated environments, and acidic conditions all call for its use, thus ensuring reliability and durability in conditions where good corrosion resistance and structural integrity are the most important requirement.







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