Home > ASTM A182 F51 Fasteners
Majid Fasteners, a top-notch manufacturer and supplier based in Dubai, UAE, specializes in high-quality ASTM A182 F51 Fasteners that are designed for reliable performance across various industrial settings. Crafted from duplex stainless steel, these fasteners meet stringent global quality standards, ensuring they offer excellent corrosion resistance and mechanical strength. Majid Fasteners boasts an extensive selection of F51 bolts, nuts, washers, studs, and custom fastening solutions, all engineered for long-lasting stability in challenging environments like those rich in chlorides, high pressure, and corrosive conditions. Their F51 fasteners are a go-to choice in offshore, marine, petrochemical, and chemical processing industries, known for their durability and high-performance capabilities.
ASTM A182 F51 Fasteners are crafted from duplex stainless steel, which contains around 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen to enhance strength. This unique blend provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. F51 fasteners are known for their impressive tensile and yield strength, excellent fatigue resistance, and solid impact toughness. Thanks to their duplex microstructure, they strike a perfect balance between durability and ductility, ensuring reliable performance even in high-stress, high-pressure, and corrosive environments.
| Element | Content (%) |
|---|---|
| Chromium, Cr | 21 – 23 |
| Nickel, Ni | 4.5 – 6.5 |
| Phosphorous, P | 0.03 Max |
| Carbon, C | 0.03 max |
| Sulfur, S | 0.02 Max |
| Molybdenum, Mo | 2.5 – 3.5 |
| Manganese, Mn | 2.0 Max |
| Silicon, Si | 1 Max |
| Copper, Cu | Balance |
| Nitrogen, N | 0.80 – 0.20 |
| Iron, Fe | Balance |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) |
|---|---|---|---|---|
| Alloy GR F51 | 105 | 43 | 35 | 255 |
| Grade | ASTM A182 GR.F51 |
| Specifications | ASTM A 182 / ASME SA 182 |
| Dimension | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | Bolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, Hexagon Castle Nuts, Hexagon Domed Cap Bolts, Hexagon Thin Nuts et |
ASTM A182 F51 Fasteners find their place in industries that require exceptional corrosion resistance and reliable mechanical performance. They’re commonly used in offshore structures, subsea pipelines, and marine engineering projects that face the harshness of seawater and chloride-rich conditions. In the oil and gas industry, you’ll find them in manifolds, valves, pumps, and pressure-handling equipment. Additionally, F51 fasteners play a crucial role in desalination plants, petrochemical facilities, chemical processing units, and heat exchangers, thanks to their durability and resistance to challenging environments.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.