Incoloy 800/800H/800HT nuts made in Da Nang, Vietnam, are specialized fastening components designed for high-temperature and corrosive environments. These alloys are based on nickel-iron-chromium, with varying levels of carbon and aluminum to enhance creep and stress rupture strength. Local manufacturers ensure precise threading, consistent durability, and resistance to oxidation. Incoloy 800 series nuts are often used in heat treatment equipment, petrochemical plants, and power generation facilities. Their stability at high temperatures and strong resistance to stress corrosion make them reliable fasteners for critical applications that require long-term mechanical performance and structural integrity.
Incoloy 800/800H/800HT nuts consist of nickel, iron, and chromium, with variations in carbon, aluminum, and titanium depending on the grade. Nickel provides corrosion resistance, chromium offers oxidation resistance, and aluminum and titanium add strength at high temperatures. Tensile strengths range from 520 to 650 MPa, with good ductility and toughness. These nuts keep their mechanical stability during thermal cycling and resist creep and stress rupture. Their balanced metallurgical properties ensure reliability in fastening components exposed to tough environments and sustained high temperatures.
| 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 Xuan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Incoloy 800/800H/800HT Nuts in Da Nang, Vietnam, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Vietnam, 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 are widely used in petrochemical plants for fastening reactors, furnaces, and piping systems. Power generation facilities employ them in boilers, turbines, and superheaters that come into contact with high temperatures. Heat treatment industries use them in equipment that requires resistance to oxidation and carburization. They are also used in chemical plants for fastening vessels and heat exchangers handling aggressive chemicals. Their ability to withstand prolonged high-temperature exposure and corrosive environments makes them essential for safe and durable fastening in critical engineering and industrial projects.
