Andre Stainless stands out as a top-notch manufacturer and supplier of high-quality SMO 254 Nuts in Singapore, Pulau Ujong, delivering cutting-edge fastening solutions tailored for harsh and corrosive environments. SMO 254 is a premium austenitic stainless steel celebrated for its remarkable strength and outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking—particularly in chloride-heavy conditions. Andre Stainless provides SMO 254 nuts in various sizes and thread types, all crafted to meet ASTM, DIN, and ASME standards. With rigorous quality control, corrosion-resistant finishes, and timely delivery, Andre Stainless guarantees durability in sectors like marine, chemical, desalination, and offshore operations.
SMO 254 Nuts are made up of around 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen, resulting in a PREN (Pitting Resistance Equivalent Number) of over 42.5. This high-alloy makeup ensures exceptional resistance to localized corrosion and stress corrosion cracking in seawater and harsh chemical environments. These nuts boast a tensile strength of 650 MPa, yield strength of 300 MPa, and impressive ductility with approximately 35% elongation. SMO 254 is non-magnetic and retains its structural integrity even at high temperatures, making it the perfect choice for extreme service conditions that demand both mechanical strength and 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.
We ensure that all the products are of high quality, including SMO 254 Nuts, with consistent performance verified through an extensive range of tests such as hardness testing, spectro analysis, PMI, and flaring tests. We also perform micro and macro tests, pitting resistance tests, and IGC tests to ensure superior quality in every material we deliver. We have beyond our strict testing procedure adequate documentation such as commercial invoices, packaging list with net and gross weight, box numbers and labels. In addition, the legalized or attested Certificate of Origin and Third-Party Inspection Certificates establish our firm’s decision to present quality products for customers with absolute satisfaction.
SMO 254 Nuts are specifically engineered for extreme environments where conventional stainless steels like 316L fall short. These nuts find extensive use in marine and offshore engineering, seawater piping systems, heat exchangers, pulp and paper processing, desalination facilities, and flue gas cleaning systems. Their exceptional resistance to chlorides and acidic substances makes them perfect for chemical tankers, pharmaceutical systems, and food processing equipment that encounter brine and aggressive cleaning agents. Andre Stainless offers SMO 254 nuts to meet the rigorous demands of these applications, ensuring reliability and performance in challenging conditions.
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