Harsh Metalloys is a reliable manufacturer, stockist, and exporter of high-quality SMO 254 bolts in Mumbai, India. With a dedicated focus on precision engineering and customer satisfaction, we stock a wide variety of fasteners that meet the highest industrial requirements. Our SMO 254 bolts are produced through sophisticated processes and high-grade raw material to deliver better performance in corrosive environments. Supported by years of experience in the industry, Harsh Metalloys has emerged as a go-to partner for customers looking for trusted and long-lasting fastening solutions across industries like petrochemicals, offshore drilling, marine, and power generation facilities.
The SMO 254 bolts are produced from a high-alloy austenitic stainless steel consisting of 20% chromium, 18% nickel, 6% molybdenum, and nitrogen to improve strength. This alloy offers remarkable resistance to corrosion, particularly in seawater and chloride environments. Mechanical properties consist of a minimum tensile strength of 650 MPa and yield strength of 300 MPa. The alloy possesses superior ductility, weldability, and impact toughness even at sub-zero temperatures. All these properties render SMO 254 bolts suitable for challenging applications in aggressive chemical and seawater environments.
| 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 |
| 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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SMO 254 bolts are known for their impressive resistance to corrosion, particularly in environments rich in chlorides. This makes them a fantastic choice for marine, chemical, and offshore applications.
F44 SMO 254 bolts deliver remarkable strength and outstanding resistance to pitting and crevice corrosion, making them perfect for tough industrial settings, including those exposed to seawater and aggressive chemicals.
ASTM A479 UNS S31254 bolts adhere to rigorous material standards for high-performance uses, blending high strength with excellent corrosion resistance in challenging environments.
UNS S31254 hex bolts are designed for strength and resistance against chlorides and acids, making them widely utilized in desalination, pulp, and offshore industries.
F44 SMO 254 hex bolts guarantee durability and corrosion resistance, making them ideal for high-stress applications in saltwater and acidic conditions that demand superior material performance.
1.4547 bolts, which are equivalent to SMO 254, provide exceptional resistance to localized corrosion, making them an excellent fit for harsh marine, chemical, and process industry environments.
SMO 254 bolts find extensive applications in applications involving superior corrosion resistance and high strength. Used widely in seawater processing systems, desalination facilities, and offshore platforms, the bolts resist severe chloride and saline conditions. They are also widely used in the chemical processing sector, heat exchangers, paper and pulp plants, and flue gas desulfurization systems. Because they are highly resistant to pitting, crevice corrosion, and stress corrosion cracking, SMO 254 bolts provide long-term integrity and reliability in structural connections. Their high mechanical and anti-corrosive features enable them to be a desirable element in key infrastructure and marine engineering works.
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