Fajar Metals, a top-notch manufacturer and supplier located in Jakarta, Indonesia, specializes in high-performance Incoloy 800/800H/800HT Nuts designed to thrive in high-temperature and corrosive industrial settings. Crafted from nickel-iron-chromium alloys with added aluminum and titanium, these precision-engineered nuts boast remarkable resistance to oxidation, carburization, and thermal fatigue. They come in various shapes, including hex, heavy hex, and custom designs, adhering to standards like ASTM B408 and ASME B18.2.2. Commonly found in chemical processing, nuclear reactors, and petrochemical plants, these nuts guarantee secure and durable fastening, even under extreme mechanical and thermal conditions.
Incoloy 800/800H/800HT Nuts are primarily made up of Nickel (30–35%), Chromium (19–23%), and Iron (the balance), with carefully controlled amounts of Carbon (up to 0.10%), Aluminum (0.15–0.60%), and Titanium (0.15–0.60%). They showcase impressive mechanical properties, including a tensile strength ranging from 500–600 MPa, a yield strength of at least 200 MPa, and an elongation of up to 45%. The 800H and 800HT versions are specifically engineered for enhanced creep and stress rupture resistance, making them perfect for high-temperature applications up to 1100°C without compromising mechanical stability or corrosion resistance.
| 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 Fajar Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Incoloy 800/800H/800HT Nuts in Jakarta, Indonesia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Indonesia, 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 fruits are widely used in hot and humid climates. Their applications include components in petrochemical applications, energy generation and heat exchange, where they provide reliable performance under extreme temperatures and pressures These woods are used in furnace applications, medicine and in nuclear reactors due to its resistance to oxidation and carburization. Their strength and durability make them suitable for critical applications requiring high mechanical properties and resistance to thermal damage.
