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ASTM B407 Alloy 800HT / UNS N08811 Seamless Nickel Alloy Steel Pipe

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ASTM B407 Alloy 800HT / UNS N08811 Seamless Nickel Alloy Steel Pipe

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Brand Name :	YUHONG
Model Number :	ASTM B407 Alloy 800HT Seamless Pipe
Certification :	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Payment Terms :	L/C,T/T
Delivery Time :	7 DAYS

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ASTM B407 Alloy 800HT / UNS N08811 Seamless Nickel Alloy Steel Pipe

ASTM B407 UNS N08811 DIN 1.4959 / INCOLOY 800HT SEAMLESS ALLOY STEEL PIPE

Alloy 800HT are high-performance alloys that belong to the Incoloy family, which are nickel-chromium-iron alloys known for their excellent high-temperature strength and oxidation resistance. It is known for its excellent resistance to oxidation and carburization, making it ideal for applications in high-temperature environments.

Here are some key characteristics of Alloy 800HT seamless tube:

High-Temperature Strength: Alloy 800HT maintains strength at elevated temperatures, making it suitable for use in furnace applications and heat exchangers.
Oxidation and Carburization Resistance: The alloy's high nickel and chromium content provide substantial resistance to oxidation and carburization, extending its lifespan in harsh environments.
Corrosion Resistance: While it is not completely immune to corrosion, Alloy 800HT offers good resistance against various corrosive media, particularly in high-temperature conditions.
Fabricability: The alloy can be easily processed through a variety of methods, including welding, machining, and forming, allowing for versatile usage.
Thermal Stability: It shows good stability across a range of temperatures, which is essential for applications that experience fluctuating temperatures.

800 / 800H / 800HT Incoloy Pipes Equivalent Grades

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 800H	1.4958 / 1.4876	N08810	NCF 800H	NA 15(H)	ЭИ670	Z8NC33-21	X5NiCrAlTi31-20	XH32T
Incoloy 800HT	1.4859 / 1.4876	N08811	NCF 800HT	NA 15(HT)	ЭИ670	–	X8NiCrAlTi32-21	XH32T

ASTM B407 Incoloy 800H/HT Seamless Alloy Steel Pipes Chemistry Composition

Ni, %	Cu, %	Fe, %	Mn, %	C, %	Si, %	S, %	Cr, %	Al, %	Ti, %
30.0-35.0	0.75 max	39.5 min	1.50 max	0.06-0.10	1.00 max	0.015 max	19.0-23.0	0.15-0.60	0.15-0.60

ASTM B407 Incoloy 800H/HT Seamless Alloy Steel Pipes Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %
450 min	170 min	30 min	Hot-finished Annealed
450 min	170 min	30 min	Cold-worked Annealed

Outside Diameter & Tolerance

	Outside Diameter, mm	Tolerance, mm
Cold-Finished	12.7≤OD＜15.8	±0.127
	15.8＜OD≤38.1	±0.19
	38.1＜OD≤88.9	±0.254
	88.9＜OD≤114.3	±0.381
	114.3＜OD≤152.4	±0.508
	152.4＜OD≤168.3	±0.635
Hot-Finished	63.5≤OD＜139.7	±0.787
Hot-Finished	139.7≤OD≤234.9	±1.19

Wall thickness & Tolerance

	Outside Diameter, mm	Tolerance, %
	Outside Diameter, mm	Average Wall	Minimum Wall
Cold-Finished	12.7≤OD＜15.8	±15.0	-
	15.8＜OD≤38.1	±10.0	-
	38.1＜OD≤88.9	±10.0	-
	88.9＜OD≤114.3	±10.0	-
	114.3＜OD≤152.4	±12.5	-
	152.4＜OD≤168.3	±12.5	-
Hot-Finished	63.5≤OD＜139.7	±12.5	+28.5/-0
Hot-Finished	139.7≤OD≤234.9	±12.5	+28.5/-0

Application

- Ethylene furnace quench boilers

- Hydrocarbon cracking

- Valves, fittings and other components exposed to corrosive attack from 1100-1800° F

- Industrial furnaces

- Heat-treating equipment

- Chemical and petrochemical processing

- Super-heater and re-heaters in power plants

- Pressure vessels

- Heat exchangers

ASTM B407 Alloy 800HT / UNS N08811 Seamless Nickel Alloy Steel Pipe

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