Themba Nickel Alloys, located in Cape Town, Cape Town, is a reliable manufacturer and exporter of Incoloy 800, 800H, and 800HT fasteners. These fasteners are engineered to provide superior strength and corrosion resistance under high-temperature and pressure conditions. With an unwavering dedication to quality and accuracy, Themba Nickel Alloys manufactures fasteners to international standards and addresses the particular requirements of industries like petrochemical, power generation, and heat treatment. Customers in South Africa and overseas are dependent on Themba’s Incoloy fasteners for their long service life, reliability, and strength in high-stress industrial uses.
Incoloy 800, 800H, and 800HT bolts are mostly made of nickel, iron, and chromium along with regulated amounts of carbon, aluminum, and titanium. The alloys are formulated to provide excellent mechanical properties at high temperatures. Incoloy 800 has good strength and oxidation resistance, whereas 800H and 800HT contain more carbon and enhanced creep and stress rupture strength. The materials are structurally stable under long-term exposure to high temperatures. They are resistant to carburization, sulfidation, and intergranular corrosion and are hence ideal for high-stress and high-temperature applications in various industries.
Standard : DIN, ASTM, BS and all International Standards
Size : 3 mm to 200 mm
Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size : M1 – M64 | #4 to 3″ | Custom Sizes
Length : M02 to M33
Types : Nuts, Bolts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw, Washers, Spring Washers, Studs, Anchors, Marine Anchors, Nut, Hexagon Nut, Hex Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, U-Bolts, J Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Wing Screw, Eye Bolt, Foundation Bolts, Structural Bolts.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| 800H | 0.05 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
| 800HT | 0.06 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60ᴬ | 0.15 – 0.60ᴬ |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 800/800H/800HT | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Incoloy 800/800H/800HT 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.
Incoloy 800, 800H, and 800HT bolts and other fasteners are found extensively used in long-term strength and stability under high temperature applications. Some of these applications are heat exchangers, pressure vessels, furnace equipment, and petrochemical processing equipment. Their ability to resist oxidation and carburization makes them perfectly adapted to applications that include exposure to hot gases and corrosive substances. In power generation, they are utilized in boiler parts and superheater tubes. Incoloy fasteners can also be utilized in thermal and nuclear power plants, refineries, and industrial heating systems, providing consistent performance under severe and high-stress operating conditions.
