Neil Metals, located in Kolkata, India, has made a name for itself as a top-notch manufacturer and supplier of high-quality Incoloy 800HT Forgings. These robust alloy solutions are specifically crafted to withstand extreme heat and harsh corrosive environments. Renowned for their exceptional quality, precise forging techniques, and strict adherence to international standards, Neil Metals caters to vital industries such as chemical processing, power generation, heat treatment, and oil & gas. With state-of-the-art manufacturing facilities and a team of skilled technical support, the company offers custom-sized Incoloy 800HT forgings with quick turnaround times. Neil Metals is dedicated to providing reliable, long-lasting materials that excel in high-temperature and high-stress industrial applications.
Incoloy 800HT Forgings consist of about 30–35% nickel, 19–23% chromium, and a minimum of 39.5% iron, along with carefully controlled amounts of carbon, aluminum (0.25–0.6%), and titanium (0.25–0.6%). This alloy is celebrated for its outstanding high-temperature strength, resistance to oxidation, and structural stability even under prolonged thermal exposure. Incoloy 800HT boasts a tensile strength ranging from 600–750 MPa and a yield strength of approximately 300–450 MPa. It also demonstrates remarkable creep and rupture resistance at temperatures up to 1000°C, making it ideal for applications that demand consistent mechanical performance in elevated heat conditions.
Specifications ASTM B564 / ASME SB564, AMS 5766
Flat bar blocks up to 27″ width and 15,000 lbs.
Cylinders and sleeves up to 50″ maximum O.D. and 65″ maximum length
Discs and hubs up to 50″ diameter and 20,000 lbs.
Rolled, hand forged or mandrel forged rings up to 84″ maximum O.D. and 40″ maximum length
Rounds, shafts and step shafts up to 144″ maximum length and 20,000 lbs.
| Grade | Ni | Fe | Cr | Cu | Ti | Al | C | Mn | S | Si |
| Alloy 800HT | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | .25-.60 | .85-1.20 | .06-.10 max | 1.5 max | .015 max | 1.0 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.94 g/cm3 | 1350-1400 ℃ | Psi – 75,000 , MPa -520 | Psi – 30,000 , MPa – 205 | 30 – 35 % |
| Density | 0.287 lb/in3 / 7.94 g/cm3 |
| Melting Point | 2475 – 2525 °F/ 1357 – 1385 °C |
| Specific Heat @ 70°F | 0.11 Btu/lb•°F |
| Permeability @ 70°F Annealed | 1.014 (200 Oersted) |
| Curie Temperature | -115 °C/ -175 °F |
| Elastic Modulus | 28.50 X 106 psi |
| Electrical Resistivity @ 70°F | 595 ohm•circ mil/ft |
| Annealling Incoloy 800 | 983 – 1038 °C / 1800 – 1900 °F |
| Annealling Incoloy 800H / Ht | 1147 – 1177°C / 2100 – 2150 °F |
| Quench | Rapid Air / Water |
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST | OR |
| Incoloy 800HT | N08811 | 1.4959 | – | X8NiCrAlTi32-21 | NCF 800HT | NA 15(HT) | ЭИ670 | XH32T |
To determine if Incoloy 800HT Forgings meet your specific needs, assess their high-temperature resistance, oxidation, and carburization properties against your application requirements. Consulting with a supplier for detailed material specifications and testing options can also ensure compatibility.
The ideal temperature range for forging Incoloy 800HT is between 2100°F (1149°C) and 2300°F (1260°C). This range ensures optimal workability, mechanical properties, and maintains the material's strength and resistance to oxidation.
Temperature control is crucial for maintaining the desired mechanical properties of forged Incoloy 800HT, as overheating or insufficient heating can lead to reduced strength and ductility. Proper temperature management ensures optimal grain structure, resistance to oxidation, and overall performance in high-temperature applications.
Incoloy 800HT Forgings find their place in a variety of high-temperature and high-stress settings. In the chemical and petrochemical sectors, they are perfect for heat exchangers, reformer outlet manifolds, furnace components, and transfer piping that come into contact with acidic and oxidizing substances. Power plants utilize them in superheater tubes, headers, and steam piping where thermal cycling is intense. In industrial heat treatment processes, they are employed for radiant tubes, retorts, and furnace hardware. Their exceptional resistance to carburization, oxidation, and thermal fatigue makes Incoloy 800HT forgings the go-to choice for components operating in demanding thermal and corrosive environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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