Walid Stainless, located in Tunis, Tunisia, stands out as a top manufacturer and supplier of high-quality stainless steel products, including SMO 254 nuts. Renowned for their durability, precision, and exceptional performance, Walid Stainless offers corrosion-resistant fastening solutions that excel in demanding industrial settings. Each SMO 254 nut is crafted to meet international standards, guaranteeing consistent quality, strength, and longevity. With a strong technical background and a commitment to customer satisfaction, Walid Stainless has become a reliable partner for businesses in Tunisia and beyond, looking for top-notch stainless steel nuts for their critical projects.
SMO 254 nuts are produced from a super austenitic stainless steel alloy that features about 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen. This unique composition provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Additionally, small amounts of manganese, copper, and silicon enhance their mechanical strength and durability. These nuts boast high tensile and yield strength, impressive hardness, and dependable performance in harsh chemical environments and elevated temperatures, making them perfect for critical industrial applications.
| 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 find their place in industries that demand exceptional corrosion resistance and mechanical strength. They are particularly suited for chemical processing, petrochemical plants, offshore and marine structures, power generation, and desalination facilities. Commonly paired with bolts and stud bolts, these nuts secure flanges, pipelines, pressure vessels, and equipment that face harsh chemicals and chloride-rich conditions. Their remarkable mechanical properties and long-lasting reliability provide safe, durable, and low-maintenance fastening solutions for essential industrial operations.
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