Santner Nickel Alloys is a reliable manufacturer and supplier of Incoloy 800/800H/800HT Nuts based in Hamilton, New Zealand. They specialize in providing top-notch fastening solutions designed for high-temperature and corrosive industrial settings. Renowned for their precision craftsmanship and commitment to international quality standards, the company produces nuts that offer outstanding strength, stability, and long-lasting reliability. The Incoloy 800 series nuts are perfect for applications that demand excellent resistance to oxidation, carburization, and thermal fatigue. Santner Nickel Alloys caters to a variety of industries, including petrochemicals, power generation, heat-treating equipment, and chemical processing, ensuring clients receive durable, high-performance fastening components tailored to meet their rigorous operational needs.
Incoloy 800/800H/800HT Nuts are primarily made up of nickel (30–35%), chromium (19–23%), and iron, with carefully controlled amounts of titanium, aluminum, and carbon. The 800H and 800HT grades come with enhanced carbon content and optimized Al+Ti levels, which provide superior creep resistance, stress-rupture strength, and thermal stability at high temperatures. These nuts excel in resisting oxidation, carburization, chloride-induced stress corrosion cracking, and sulfidation. Mechanically, they boast high tensile strength, good ductility, a stable microstructure, and reliable performance up to 1100°C, making them ideal for continuous use in harsh, high-temperature environments.
| Standard | : | ASTM B425, ASME SB425, F2281 |
| Dimension | : | ASTM,DIN, BS,GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Nut Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Heat Treatment | : | Annealing, Stress Relieving, Case Hardening, Quenching and Tempering. |
| Type | : | Hex Nut, Heavy Hex Nut, Lock Nut, Nylock Nut, Weld Nut, Dome Nut, Flange Nut, Square Nut, Eye Nut etc. |
| 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 Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Incoloy 800/800H/800HT Nuts in Hamilton, New Zealand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the New Zealand, 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/800HT Nuts find extensive use in industries where components need to withstand extreme heat, corrosive environments, and mechanical stress. They play a crucial role in heat exchangers, boilers, petrochemical plants, chemical processing systems, and power generation equipment. These nuts securely fasten components in furnace parts, superheaters, thermal oxidizers, cracking units, steam reformers, and refinery machinery. Their remarkable resistance to oxidation and other harsh conditions makes them a go-to choice for demanding applications.
