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INCOLOY880/880H/880HT UNS N08800/N08810/N08811 Hastelloy Steel Pipe Fittings

incoloy800 is an alloy that typically contains 15-25% Cr, 30-45% nickel, and small amounts of aluminum and titanium.
800 alloy from high temperature and rapid cooling are in the austenite single zone, therefore, the use of a single austenite structure. The alloy has a high chromium content and sufficient nickel content, so it has a high temperature corrosion resistance, and is widely used in industry.

Product description：

INCOLOY 880/880H/880HT is a high-strength, corrosion-resistant nickel-iron-chromium alloy designed for high-temperature applications. It offers exceptional resistance to oxidation, carburization, and sulfidation, making it ideal for harsh industrial environments. With its high nickel and chromium content, it exhibits excellent resistance to corrosive media, including acids and chloride solutions. The alloy’s unique microstructure provides outstanding mechanical properties, ensuring reliable performance under extreme conditions. Widely used in chemical processing, petrochemical, and power generation industries, INCOLOY 880/880H/880HT is a reliable choice for high-temperature applications that demand both strength and corrosion resistance.

Product characteristics：

800 alloy has the following properties
1. Good corrosion resistance and high temperature resistance
2. Good mechanical properties at minus zero, room temperature and up to 600°C
3. Good anti-oxidation, reduction, nitriding environmental performance
4. Good processing performance

The 800H alloy has the following characteristics
1. Excellent corrosion resistance in water-based media at extremely high temperatures of up to 500℃
2. Good resistance to stress corrosion
3. Good processability

Chemical composition：

Alloy	%	C	Mn	Si	Cr	S	Ni	Cu	Fe	Al	Ti
800	Min	–	–	–	19	–	30	–	Bal.	0.15	0.15
800	Max	0.10	1.5	1	23	0.015	35	0.75	Bal.	0.60	0.60
800H	Min	0.05	–	–	19	–	30	–	Bal.	0.15	0.15
800H	Max	0.10	1.5	1	23	0.015	35	0.75	Bal.	0.60	0.60
800HT	Min	0.06	–	–	19	–	30	–	Bal.	0.15	0.15
	Max	0.10	1.5	1	23	0.015	35	0.75	Bal.	0.60	0.60
	Al+Ti为0.85-1.20

Physical property：

density	8.0G/CM³
Fusing point	1350-1400C

The minimum mechanical properties of an alloy at room temperature：

Alloy state	Tensile strength	Yield strength	Rate of elongation
	RM N/MM2	RP0.2N/MM2	A5 %
800	500	210	≤35
800H	450	180	≤35

Product form and implementation standards：

Product	ASTM standards	ASME standards	AME standards
Sheet. Sheet. Strip	B409	SB409	5871
Seamless pipe	B163.B407	SB163.SB407
Welded pipe	B514
Bar. Cake	B408	SB408
forging	B564	SB564