At Nasir Nickel Alloys in Manama, Bahrain, Hastelloy Fasteners are engineered to perform exceptionally well in some of the most corrosive and demanding industrial environments. Crafted from high-performance nickel-based alloys, these fasteners provide outstanding resistance to pitting, crevice corrosion, and chemical attack across both oxidizing and reducing conditions. Their ability to maintain structural integrity under extreme temperatures and mechanical stress makes them ideal for mission-critical applications. Hastelloy Fasteners are designed to deliver long-term durability, reliability, and safety in operations where corrosion resistance and mechanical strength are absolute priorities.
Hastelloy Fasteners are composed primarily of nickel, chromium, molybdenum, and, in some grades, tungsten. This combination creates an alloy family with exceptional corrosion resistance and strong mechanical performance. Chromium enhances protection in oxidizing environments, while molybdenum and tungsten strengthen resistance to pitting and crevice corrosion. These fasteners exhibit excellent tensile and yield strength, good ductility, and high resistance to stress corrosion cracking, even in chloride-rich conditions. Their ability to withstand elevated temperatures, aggressive chemicals, and thermal cycling ensures dependable mechanical stability across challenging applications.
| Specifications | ASTM B574 / ASME SB574 |
|---|---|
| Fasteners size | Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Machine Screws Size : M1.6 – M12 Self Tapping Screw Size : No.2 – No. 14 |
| Fasteners Length | 3 mm to 200 mm |
| Fastener Threads | UNF, BSW, BSF, METRIC, UNC or as required |
| Standard of High Nickel Alloy Fasteners | DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 Hex nuts |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Surface Coating | Ptfe Coated High Nickel Alloy Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
Fasteners Finishing | High Nickel Alloy : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), High Nickel Alloy, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide. |
| Grade | C | Mn | Si | Co | S | Ni | Cr | Fe | Mo | W | V | P |
| Hastelloy Fasteners | 0.010 max | 1.0 max | 0.08 max | 2.5 max | 0.03 max | Bal | 14.5 – 16.5 | 4 – 7 | 15 – 17 | 3 – 4.5 | 0.35 max | 0.04 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy Fasteners | 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 Fasteners 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.
Contact us to get a quick quote for your requirement.
Hastelloy Fasteners are widely used across industries where severe corrosion, high temperatures, and chemical exposure are routine. In chemical processing, they support reactors, heat exchangers, scrubbers, and acid-handling equipment. Petrochemical plants rely on them for high-pressure pipelines, sour gas systems, and refinery components. Pollution control units, including flue-gas desulfurization systems, benefit from their resistance to corrosive waste streams. Marine and offshore sectors use them for subsea equipment and saltwater-exposed structures. Additionally, Hastelloy Fasteners play a crucial role in pharmaceuticals, wastewater treatment, and aerospace applications, where long-term performance and material reliability are essential.
