Vinit Stainless has established a solid reputation as a reliable provider of high-end stainless steel products in Chennai, India, thanks to its extensive experience in the manufacturing of stainless steel. SMO 254 Bolts are one of our specialty products; they are designed to perform well in harsh and corrosive industrial settings. These bolts, which are made of high-alloy austenitic stainless steel (SMO 254), are made to resist pitting, stress corrosion, and crevice corrosion caused by chloride. Vinit Stainless is a reliable partner for critical fastening solutions globally because of the alloy’s exceptional strength, mechanical stability, and durability, which are ensured by its approximately 20% chromium, 18% nickel, and 6% molybdenum content.
About 20% chromium, 18% nickel, and 6% molybdenum are included in SMO 254 Bolts, along with copper and nitrogen for increased corrosion resistance. In addition to having outstanding elongation and impact strength, this high-alloy stainless steel has a tensile strength of 650–900 MPa and a yield strength of 300–450 MPa. Particularly in saltwater and chemical-rich environments, these bolts provide remarkable resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. They are perfect for maintaining structural integrity in harsh and demanding applications because of their high mechanical strength and resistance to corrosion.
| 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 high-performance fasteners made from super duplex stainless steel, offering exceptional corrosion resistance and strength. Ideal for marine, chemical, and high-temperature applications, they ensure durability and reliability.
F44 SMO 254 bolts are high-performance fasteners made from super duplex stainless steel grade F44. They offer superior corrosion resistance and strength, suitable for marine, chemical, and high-temperature applications.
ASTM A479 UNS S31254 bolts are high-strength fasteners made from super duplex stainless steel. They provide excellent corrosion resistance and durability, suitable for demanding applications in marine, chemical, and high-temperature environments.
UNS S31254 hex bolts are high-strength fasteners made from super duplex stainless steel. They feature a hexagonal head for secure tightening and offer excellent corrosion resistance in demanding marine and industrial applications.
F44 SMO 254 hex bolts are high-performance fasteners made from super duplex stainless steel F44. They feature a hexagonal head, offering superior corrosion resistance and strength for marine and chemical applications.
1.4547 bolts are made from super duplex stainless steel, offering exceptional corrosion resistance and strength. Ideal for harsh environments like marine and chemical industries, they provide durability and high performance.
Our quality control team conducts very intensive destructive and non-destructive tests after manufacture. Bolt efficiency and reliability have been guaranteed utilizing advanced tools and techniques on SMO 254 bolts. These quality controls ensure that each bolt meets the highest applicable standards for industrial applications. Once approved bolts, we pack them up tightly and in using suitable materials for safety in transit. We ensure smooth and timely delivery for our valued customers without any delay. Besides, we provide all the required documentation at the time of delivery for the customer’s convenience, to further build trust and transparency.
Industries that require exceptional corrosion resistance frequently use SMO 254 bolts. They are perfect for chemical processing facilities, desalination plants, offshore platforms, and marine applications. Fastening parts of pumps, valves, heat exchangers, and pressure vessels exposed to saltwater, chlorides, and strong acids are among their frequent applications. Additionally, the pulp and paper, power generation, and oil and gas industries use these bolts. Long-term dependability, less maintenance, and safe operation under high pressure and temperature extremes are guaranteed by their exceptional corrosion resistance, particularly in high-salinity or acidic environments.
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