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Punit Fasteners, a reputable manufacturer and supplier located in Delhi, India, specializes in high-performance SMO 254 Bolts designed for the toughest corrosive environments. SMO 254 (UNS S31254) is a high-alloy austenitic stainless steel crafted specifically for aggressive chloride-laden settings, providing remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. These bolts are perfect for industries like offshore oil and gas, desalination, chemical processing, and marine engineering. With a commitment to precision and rigorous quality control, Punit Fasteners offers SMO 254 bolts in a variety of sizes, thread types, and finishes, ensuring they meet global standards for durability and reliability in challenging applications.
SMO 254 Bolts are made up of around 20% chromium, 18% nickel, 6% molybdenum, and nitrogen, which together deliver exceptional corrosion resistance and strength. These bolts boast a tensile strength ranging from 650 to 900 MPa and a yield strength of 300 to 450 MPa. They also exhibit excellent ductility, toughness, and weldability, maintaining their performance even at temperatures up to 600°C. SMO 254 has a notably high PREN (Pitting Resistance Equivalent Number), typically exceeding 42.5, making it an ideal choice for chloride-rich and acidic environments where standard stainless steels like 316L or 904L might not hold up.
| 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 % |
| Specifications of 254 SMO Fasteners | ASTM A479 & ASME SA479 |
| Standard of 254 SMO Fasteners | DIN, ASTM, BS and all International Standards |
| Length of 254 SMO Fasteners | 3 mm to 200 mm |
| 254 SMO Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| 254 SMO Bolt / Screw Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| 254 SMO Machine Screws Size | M1.6 – M12 |
| 254 SMO Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Stainless Steel Grades | SMO 254 |
| 254 SMO Fasteners Type | Socket Screw, Hex Set Screw, Cap Screw, Machine Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut,U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts,Eye Bolt,Structural Bolts, Bolts, Nuts, Sockets, Screws, Allen Cap screw, Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Pan Head Screw, Socket Head Cap Screw, Wing Screw, T-Head Bolts, Foundation Bolts,Screw, Studs |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
SMO 254 bolts are widely employed in marine applications such as in ships and offshore platforms because of its excellent resistance to corrosion in marine environment. They find application in chemical processing industries because they can handle aggressive chemicals and high temperatures. Furthermore, these bolts are used in heat exchangers, pulp and paper industries and other industries where high tensile strength and high endurance is required for durability and reliability.
SMO 254 Bolts are essential in extreme service environments where regular stainless steels fall short. You’ll find them in applications such as seawater cooling systems, offshore oil and gas platforms, desalination plants, chemical tankers, flue-gas cleaning systems, and pulp and paper mills. Their outstanding resistance to localized corrosion makes them perfect for flange connections, pumps, valves, and pressure vessels that are exposed to chlorides, acids, and high temperatures. Punit Fasteners provides SMO 254 bolts in both metric and imperial sizes, custom-machined to meet client specifications, ensuring unmatched quality and performance.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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