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Incoloy 800

Material: Incoloy 800, Alloy 800, N08800, 1.4876

Incoloy 800 is a nickel high temperature alloy that is widely used in a variety of high temperature environments due to its good high temperature strength, oxidation resistance and corrosion resistance. JN is an Incoloy 800 bars, sheets, pipes, tubes, welded fittings, forgings manufacturer and supplier, high quality products, custom specifications and standards, global supply.

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Incoloy 800 IntroductionIntroduction

Incoloy 800 is a nickel-iron-chromium superalloy designed for high-temperature and corrosive environments. It belongs to the family of "Incoloy" alloys and is standardized under UNS N08800. Incoloy 800 has good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. Alloy 800 has excellent resistance to stress corrosion cracking in chloride and high-temperature and high-pressure water, so it is used to manufacture stress corrosion cracking resistance equipment.

Incoloy 800 Properties

Excellent Oxidation Resistance: Performs exceptionally well in continuous service up to about 1100°F (593°C) and intermittently up to 1800°F (982°C) in air. Forms a protective chromium oxide scale.

Good Carburization and Nitridation Resistance: Resists attack in carburizing and nitriding furnace atmospheres better than many stainless steels.

Good Sulfidation Resistance: Resists sulfur-bearing atmospheres like refinery environments.

High-Temperature Strength: Maintains good mechanical strength and creep resistance at elevated temperatures.

Corrosion Resistance: Resists corrosion by

Aqueous corrosion.
Chloride stress corrosion cracking—significantly better than 300-series stainless steels.
Nitric acid, phosphoric acid, and organic acids.
Alkaline solutions.
Steam and steam/hydrocarbon mixtures.

Good Fabricability: It can be readily formed, machined, and welded using matching filler metals such as Inconel 82/182/625 and standard techniques like GTAW, GMAW, and SMAW.

Incoloy 800 Chemical Composition

Grade	Ni	Cr	Fe≥	Al	C≤	Mn≤	Si≤	S≤	Cu≤	P≤	Al
Incoloy 800	30.0-35.0	19.0-23.0	39.5	0.15-0.60	0.10	1.50	1.00	0.015	0.75	0.045	0.15-0.6

Incoloy 800 Physical Properties

Density	Melting Range		Specific Heat		Electrical Resistivity
7.94g/cm3	1357-1385°C	2475-2525°F	460J/kg. k	0.11Btu/lb.°F	989µΩ·m

Incoloy 800 Mechanical Properties

Tensile Strength, min.		Yield Strength, min.		Elongation,min.
520Mpa	75ksi	205Mpa	30ksi	30%

International Equivalents

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN	OR
Incoloy 800	1.4876	N08800	NCF 800	NA 15	ЭИ670	Z8NC32-21	X10NiCrAlTi32-20	XH32T

Incoloy 800 Product And Standads

Product	Standard	Show
Incoloy 800 bars	ASTM B408, EN 10095
Incoloy 800 sheet plate	ASTM A240, A480, ASTM B409, B906
Incoloy 800 seamless pipe	ASTM B829, B407
Incoloy 800 welded pipe	ASTM B514, B515, B751, B775
Incoloy 800 welded fittings	ASTM B366
Incoloy 800 forgings	ASTM B564, DIN 17460