Themba Nickel Alloys, a reputable manufacturer and supplier located in Cape Town, Cape Town, specializes in high-quality Hastelloy C276 Bolts designed for exceptional strength, durability, and corrosion resistance in tough industrial settings. These bolts are crafted to meet international standards, ensuring reliable performance even in highly corrosive and high-temperature environments. Renowned for their outstanding resistance to both oxidizing and reducing agents, Themba Nickel Alloys’ Hastelloy C276 Bolts are perfect for critical applications across the chemical, petrochemical, marine, and power generation sectors. Their precise manufacturing guarantees a long service life, leak-proof fastening, and structural integrity under demanding operational conditions.
Hastelloy C276 Bolts are made from a blend of nickel, molybdenum, and chromium, with small amounts of iron and tungsten added. This unique composition provides remarkable resistance to pitting, crevice corrosion, and stress-corrosion cracking caused by chlorides. The bolts boast a tensile strength of around 690–785 MPa, a yield strength of 275–355 MPa, and an elongation of 40–45%. They retain their mechanical stability and strength even at elevated temperatures, offering excellent weldability and resistance to harsh chemical environments, making them reliable and durable fastening solutions in aggressive industrial settings.
| Secifications | ASTM B 574 ASME SB 574 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Hastelloy Bolts | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| 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 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 52,000 , MPa – 355 | Psi – 1,15,000 , MPa – 790 | 40 % |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy C276 Bolts 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 C276 Bolts find extensive use in the chemical processing, petrochemical, marine, and power generation industries. They are perfect for securing flanges, valves, pressure vessels, heat exchangers, and piping systems that deal with highly corrosive fluids and gases. In offshore and seawater applications, they excel in resisting oxidation and chloride attack. Their strength, corrosion resistance, and dimensional stability make them ideal for high-pressure and high-temperature situations. These bolts ensure safe, leak-proof, and long-lasting fastening solutions.
