Material Grade

Incoloy 800 / H / HT

Incoloy 800,Incoloy 800H , and Incoloy 800HT are nickel-iron-chromium super alloys. When exposed to high-temperature these alloys not only provide excellent resistance to oxidation and carburization but also good strength too. These nickel steel alloys are similar except for the higher level of carbon in Incoloy 800H, and the addition of up to 1.20 percent titanium and aluminum in Incoloy 800HT.

Specifications

UNS	N08800/10/11
Werkstoff Nr.	1.4876/4958/59

Mechanical & Physical Properties

Density	7.94 g/cm3
Melting Point	1385 °C (2525 °F)
Tensile Strength	Psi-75,000 , MPa-520
Yield Strength (0.2% Offset)	Psi-30,000 , MPa-205
Elongation	30 %

Chemical Composition

Incoloy	800	800H	800HT
Ni	30-35	30-35	30-35
Fe	39.5 min	39.5 min	39.5 min
Cr	19-23	19-23	19-23
Cu	0.75 max	0.75 max	0.75 max
Ti	0.15-0.60	0.15-0.60	0.25-0.60
Al	0.15-0.60	0.15-0.60	0.85-1.20
C	0.1 max	0.05-0.1	0.06-0.1
Mn	1.5 max	1.5 max	1.5 max
S	0.015 max	0.015 max	0.015 max
Si	1.0 max	1.0 max	1.0 max