At Nasir Nickel Alloys in Manama, Bahrain, Hastelloy Nuts are engineered for exceptional performance in highly corrosive and high-temperature industrial environments. Made from nickel-molybdenum alloys with small additions of iron, copper, or cobalt depending on the grade, these nuts provide superior resistance to pitting, crevice corrosion, and stress-corrosion cracking. Designed for critical fastening applications, Hastelloy Nuts maintain mechanical integrity, dimensional stability, and toughness even under prolonged exposure to aggressive chemicals and elevated temperatures. Their durability makes them ideal for chemical, petrochemical, marine, and power generation industries, offering secure and long-lasting connections where conventional fasteners fail.
Hastelloy Nuts are composed primarily of nickel and molybdenum, with iron, cobalt, and copper added to enhance corrosion resistance and mechanical strength. These nuts exhibit excellent tensile and yield strength, maintaining structural integrity under thermal cycling and high mechanical stress. They resist pitting, crevice corrosion, and stress-corrosion cracking, even in highly oxidizing and reducing environments. The alloy provides exceptional ductility and toughness while retaining dimensional stability under extreme conditions. Hastelloy Nuts deliver reliable performance in aggressive chemical, high-temperature, and marine applications, ensuring secure and long-term fastening in demanding industrial environments.
| Specifications | ASTM F468, F467, B574 / ASME SF467, ASME SF468 ASME SB574 |
| Standards | JIS, DIN, ASTM, BS and all International Standards |
| Size | M4 To M100, 3/8″ Unc Till 4″ UNC |
| Length | M3 – M5 (Up to 50mm), M6 – M10 (up to 80mm) |
| Gasket Style | Style CG, Style CGI, Style R, Style RIR |
| Dimensions | DIN 931, 933, 934, 7991, 976, ASME B18.2.1, B18.3 ASME B16.5, ASME B16.47 SERIES A & B |
| Property Class: | For Bolts & Screws: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H For Nuts: A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040For SHCS: F837B, F837C, F837E, F837 For Threaded Rods: A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2 |
| Grade | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr | W | V |
| Hastelloy Nuts | Balance | 0.01 max | 15–17 | 1.0 max | 0.08 max | 4–7 | 0.04 max | 0.03 max | 2.5 max | 14.5–16.5 | 3–4.5 | 0.35 max |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy Nuts | 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 790 | Psi – 52,000 , MPa – 355 | 40 % |
At Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy Nuts in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
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Hastelloy Nuts are widely used in industries where corrosion resistance, high strength, and durability are critical. They are essential in chemical processing plants, including reactors, heat exchangers, and piping systems exposed to acids, chlorides, and other aggressive media. Petrochemical and refinery operations rely on them for pumps, valves, and structural assemblies. Power generation industries use Hastelloy Nuts in high-temperature equipment, boilers, and turbines. Marine and offshore applications benefit from their resistance to seawater and chloride-induced corrosion. These nuts provide secure, long-lasting fastening solutions for critical systems operating in high-stress, high-temperature, and chemically aggressive environments.
