Hemi Metals, located in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of top-notch Incoloy 800H Forgings. They cater to industries that require outstanding heat and corrosion resistance. With a keen emphasis on precision engineering and adherence to international quality standards, Hemi Metals provides forgings that consistently perform well in extreme conditions. By blending cutting-edge production technology with extensive metallurgical knowledge, they create components specifically designed for high-temperature industrial applications. Their dedication to durability, consistency, and customer satisfaction has made them a go-to partner for clients in the energy, chemical processing, petrochemical, and thermal equipment sectors who are in search of trustworthy Incoloy 800H forged solutions.
Incoloy 800H Forgings are mainly made up of nickel, iron, and chromium, with added elements like carbon, aluminum, and titanium that boost stability at high temperatures. These alloys are known for their impressive mechanical strength, good stress-rupture characteristics, and exceptional resistance to oxidation and carburization. Thanks to controlled carbon levels and grain size, the material maintains its structural integrity even in high-temperature settings. Additionally, Incoloy 800H Forgings provide reliable creep resistance, making them perfect for long-term use in challenging thermal conditions where durability and metallurgical stability are crucial.
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 800H | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | .15-.60 | .15-.60 | .05-.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 800H | N08810 | 1.4958 | Z8NC32-21 | X10NiCrAlTi32-20 | NCF 800H | NA 15(H) | ЭИ670 | XH32T |
The ideal temperature range for forging Incoloy 800H is between 2100°F and 2250°F (1149°C to 1232°C). This range ensures optimal workability and preserves the material’s mechanical properties.
Post-forging operations for Incoloy 800H typically include annealing to relieve stress and enhance ductility, followed by heat treatment to achieve desired mechanical properties. Surface cleaning and inspection for defects are also essential to ensure quality.
To determine if Incoloy 800H Forgings meet your specific needs, review material specifications, including composition and mechanical properties, and consult with suppliers for customized testing or performance data. Additionally, consider your application's temperature, corrosion, and mechanical requirements.
These forgings find their place in various applications that demand high-temperature strength and resistance to harsh environments. Industries such as petrochemical, chemical processing, power generation, and heat-treatment equipment depend on these forgings for components like furnace parts, heat exchanger tubing, superheater supports, and structural elements in thermal systems. Their ability to endure oxidation, carburization, and extended exposure to extreme heat makes them ideal for reformer units, cracking furnaces, gas turbines, and pressure-bearing assemblies. Incoloy 800H Forgings ensure long-term reliability, providing peace of mind for those who rely on them.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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