Ashraf Nickel Alloys stands out as a top manufacturer and supplier of Hastelloy Fasteners in Riyadh, Saudi Arabia. They specialize in high-performance fastening solutions that are built to withstand extreme corrosion and high temperatures. Hastelloy Fasteners are prized for their remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, making them perfect for critical applications in industries like chemical processing, petrochemical, marine, power generation, and aerospace. With a diverse selection that includes bolts, nuts, screws, studs, and washers, these fasteners guarantee reliable performance, durability, and a long service life even in the toughest industrial environments.
These fasteners are mainly made from nickel, molybdenum, and chromium, with small amounts of iron and tungsten added in. This combination gives them exceptional mechanical strength, thermal stability, and corrosion resistance. They boast impressive tensile and yield strength, outstanding resistance to creep and fatigue, and they maintain their toughness across a wide temperature range. Their metallurgical stability ensures they perform reliably in both oxidizing and reducing environments, making them a trustworthy choice for high-stress and high-temperature 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 Ashraf Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy Fasteners in Riyadh, Saudi Arabia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Saudi Arabia, 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 find extensive use in chemical reactors, piping systems, and heat exchangers that come into contact with aggressive acids, alkalis, and other corrosive substances. The marine and offshore industries rely on them for components exposed to seawater, while power generation facilities utilize them in boilers, superheaters, and high-pressure piping systems. In aerospace, they are essential for turbine assemblies, exhaust systems, and structural fastenings. With their outstanding blend of strength, corrosion resistance, and durability, Hastelloy Fasteners are a dependable solution for critical industrial fastening needs.