Incoloy 800 (UNS N08800)

Incoloy 800 (UNS N08800) is a nickel-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. The alloy maintains a stable, austenitic structure during prolonged exposure to high temperatures. Used for process piping, heat exchangers, carburizing equipment, heating element sheathing, and nuclear steam-generator tubing.

Equivalent Grades

Trademarks	GB	JIS	KS	ASTM	UNS	DIN	W.Nr	GOST	BS	NF
Nicrofer 3220 Incoloy 800	NS1101 NS111	NCF 800 NCF 2B	NCF 800	Incoloy 800	N08800	X10NiCrAlTi32-20	1.4876	–	NA15	–

Product Forms

Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings

Chemical Composition,%

C	P	S	Mn	Si	Cr	Ni	Al	Ti	Cu	Fe
≤0.10	≤0.03	≤0.02	≤1.50	≤1.00	19.00~23.00	30.00~35.00	0.15~0.60	0.15~0.60	≤0.75	Bal

Typical Physical & Mechanical Properties (RT, Solution Annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	Elongation,%
8.00	1357-1375	600	275	45

Specifications

Rod, Bar, Wire, Forgings	ASTM B408/ASME SB408, ASTM B564/ASME SB564, ISO 9723/9724/9725
Plate, Sheet, Strip	ASTM A240/A480/B409/B906/ASME SA240/SA480/SB409/SB906, ISO 6208
Pipe, Tube	ASTM B163/ASME SB163, ASTM B407/B829/ASME SB407/SB829, ASTM B514/B775/ASME SB514/SB775, ASTM B515/B751/ASME SB515/SB751, ISO 6207
Others	ASTM B366/ASME SB366(Fittings)

Features

High temperature strength
High creep rupture strength
Resistant to oxidation and carburization in high temperature environments
Good corrosion resistance in many acidic environments
Good resistance to many sulfur-containing atmospheres

Applications

Industrial furnaces
Heat exchangers
Hydrocarbon cracking
Ethylene furnace quench boilers
Valves, fittings and other components exposed to corrosive attack from 1100-1800° F
Chemical & Petrochemical processing