If you’re looking for top-notch Hastelloy Fasteners, look no further than Themba Nickel Alloys, a premier manufacturer and supplier based in Cape Town, South Africa. These fasteners are crafted for outstanding performance in tough environments where corrosion and high temperatures are a concern. Renowned for their incredible strength, durability, and resistance to chemical attacks, they guarantee reliable and long-lasting connections in even the most demanding industrial settings. Themba Nickel Alloys uses cutting-edge manufacturing techniques and rigorous quality control to ensure precision, consistency, and adherence to international standards. Their Hastelloy Fasteners are a go-to choice in industries like chemical processing, aerospace, power generation, and marine, establishing the company as a trusted source for high-performance nickel-based alloy fastening solutions.
These Hastelloy Fasteners are made up of about 60% nickel, 16% molybdenum, and 22% chromium, along with small amounts of iron, tungsten, and cobalt. This special blend gives them remarkable resistance to oxidation, pitting, and crevice corrosion, even in harsh chemical and high-temperature conditions. On the mechanical side, these fasteners boast a tensile strength of around 790 MPa, a yield strength of 355 MPa, and impressive ductility. Their unique combination of high-temperature stability, creep resistance, and toughness ensures they perform reliably under extreme stress and corrosive environments.
| 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 Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy Fasteners in Cape Town , South Africa, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Cape Town, 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 a staple in industries that demand exceptional corrosion resistance and mechanical strength. They’re commonly found in chemical and petrochemical plants, where they’re used to assemble reactors, heat exchangers, and pipelines that face acidic or oxidizing media. In the aerospace sector, you’ll find them in engine components and high-temperature structural assemblies. They also play a crucial role in power generation systems, marine equipment, and pollution control installations. With their superior mechanical properties, corrosion resistance, and high-temperature stability, Hastelloy Fasteners are perfect for critical industrial and engineering applications.