Incoloy 801: UNS Designation N08801, also known as “Alloy 801”; Incoloy 802: UNS Designation N08802, “Alloy 802”. Very similar to Incoloy 800, both Incoloy 801 and Incoloy 802 are iron-nickel-chromium alloys. Incoloy 801 has increased titanium additions raising the tensile and rupture strength dramatically and it has exceptional resistance to polythionic acid cracking. Incoloy 802 offers competitive high-temperature strength capabilities because of its high carbon level and has been used extensively in sinter deck plate applications for handling abrasive, high-temperature environments. Metals-Piping mainly supplies Incoloy 801 & 802 in the form of wire.

1. Chemical Composition Requirements

The Chemical Composition	Incoloy 801, %	Incoloy 802, %
Nickel	≥32	≥32
Chromium	≥20.5	≥21
Iron	Balance	Balance
Carbon	≤0.05	≤0.35
Aluminum	-	≥0.60
Titanium	≥1.10	≥0.70
Copper	≥0.15	-

2. Physical Properties of Incoloy 801 & 802

Density	Melting Range	Specific Heat	Elastic Modulus
g/cm3	°C	J/kg. k	Gpa
8.0	1372-1400	485	200

3. Mechanical Properties of Incoloy 801 & 802

Tensile Strength, min.	Yield Strength, min.	Elongation, min.	Reduction in Area, min.
Mpa	Mpa	%	%
1160	1035	15	53

*Incoloy 801 and Incoloy 802 wires should be furnished in the conditions of oil quenched, fine grained and tempered at 426°C.

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