INCOLOY800H/HT is an austenitic heat-resistant alloy widely used in high-temperature pressure-bearing structural parts. The high strength of 800H/HT is mainly due to the addition of carbon, aluminum, and titanium elements, and it is annealed at a minimum temperature of 1149ºC to achieve The grain size is ASTM5 grade or coarser.
Similar Grades:
GB/T NS112 UNS N08810 W.Nr 1.4876
The chemical composition of Incoloy 800H:
Alloy % Nickel Chromium Iron Carbon Manganese Silicon Copper Sulfur Aluminum Titanium
800 minimum 30 19 0.15 0.15
Maximum 35 23 margin 0.10 1.5 1 0.75 0.015 0.60 0.60
800H minimum 30 19 0.05 0.15 0.15
Maximum 35 23 margin 0.10 1.5 1 0.75 0.015 0.60 0.60
800HT minimum 30 19 0.06 0.15 0.15
Maximum 35 23 margin 0.10 1.5 1 0.75 0.015 0.60 0.60
Aluminum + titanium is 0.85-1.20
Physical properties of Incoloy 800H:
Density 8.0 g/cm3
Melting point 1350-1400 ºC
Incoloy 800H solid solution state, the mechanical properties of the alloy at room temperature:
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