Marsh Nickel Alloys, located in Canberra, Australia, stands out as a leading manufacturer and supplier of Incoloy 800/800H/800HT Nuts, proudly serving clients in Dubai, UAE. Known for their precision engineering and top-notch product quality, this company specializes in high-performance fastening solutions that can handle extreme conditions. Their Incoloy nuts are made with cutting-edge technology, ensuring they are durable, resistant to oxidation, and possess strong mechanical properties even at high temperatures. Marsh Nickel Alloys is dedicated to delivering reliable, corrosion-resistant, and custom-engineered fastening products that adhere to international standards, meeting the varied needs of industries like petrochemical, power generation, and marine engineering.
The Incoloy 800/800H/800HT Nuts are primarily made up of nickel (30–35%), chromium (19–23%), and iron, with carefully controlled amounts of carbon, aluminum, and titanium. These alloys are known for their impressive strength and resistance to oxidation and carburization in high-temperature settings. Their mechanical properties include a tensile strength of about 550–750 MPa, yield strength ranging from 200–450 MPa, and an elongation of up to 45%. The material maintains its stability, toughness, and creep resistance even when faced with thermal stress, making it perfect for long-term use in harsh environments and heat treatment applications.
| 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 Marsh Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Incoloy 800/800H/800HT Nuts in Canberra, Australia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Australia, 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 extensively utilized in industries that require exceptional resistance to high temperatures and corrosive conditions. You’ll often find them in heat exchangers, pressure vessels, power generation equipment, furnace components, and chemical processing plants. These nuts ensure secure fastening in steam piping, superheaters, and petrochemical units where resistance to oxidation and scaling is crucial. Their remarkable mechanical properties make them suitable for both cryogenic and high-temperature applications, guaranteeing long-lasting reliability and safety in industrial assemblies that operate under extreme thermal and mechanical stress.
