At Adam Stainless, we take pride in offering top-notch SMO 254 nuts, expertly crafted right here in Canberra, Australia. These nuts are built to deliver outstanding strength and corrosion resistance, making them perfect for tough industrial settings. Each nut is precision-engineered to comply with rigorous international standards, ensuring that they provide reliable and secure fastening for critical applications. With their excellent dimensional accuracy and smooth surface finish, SMO 254 nuts from Adam Stainless are the ideal match for fasteners used in corrosive and high-stress environments.
Made from super austenitic SMO 254 stainless steel, these nuts boast a composition of about 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen, which gives them remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, they offer a tensile strength of around 690 MPa and a yield strength close to 310 MPa, striking a perfect balance between strength and ductility for reliable performance.
| 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 % |
Contact us to get a quick quote for your requirement.
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.
SMO 254 nuts are commonly found in industries such as marine, chemical processing, offshore oil and gas, and desalination, where secure and corrosion-resistant fasteners are a must. They excel in harsh environments that involve seawater, acidic chemicals, and high temperatures, ensuring a long-lasting, maintenance-free operation. With Adam Stainless’s SMO 254 nuts, you can count on durable and leak-proof fastening solutions for your critical infrastructure and equipment.
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.







©2024 Adam Stainless All Rights Reserved.