Incoloy 800H & 800HT (UNS N08810 & N08811)

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50 Kilograms(Min. Order)

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Product Description

*Similar Grade

Trademark

UNS

DIN

EN/DIN

W-Nr.

EN/BS

NS1102

NS112

Incoloy 800H

Incoloy 800HT

N08810

N08811

X10NiCrAlTi32-20

1.4876

NA15H

*Product Forms

Pipe, Tube, Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire

*Brief

Nickel-iron-chromium alloys having the same basic composition as INCOLOY alloy 800 but with significantly higher creep-rupture strength. The higher strength results from close control of the carbon, aluminum, and titanium contents in conjunction with a high-temperature anneal. Used in chemical and petrochemical processing, in power plants for super-heater and reheater tubing, in industrial furnaces, and for heat-treating equipment.

*Chemical Composition,%

Alloy	%	Ni	Fe	Cr	C	Mn	Si	P	S	Al+Ti	Ti
800H	Min	30.0	39.5	19.0	0.05					0.30	0.15
800H	Max	35.0		23.0	0.10	3.0	0.10	0.03	0.02	1.20	0.60
800HT	Min	30.0	39.5	19.0	0.06					0.30	0.25
800HT	Max	35.0		23.0	0.10	3.0	0.10	0.03	0.02	1.20	0.60

*Typical Physical & Mechanical Property(Annealed)

Density	Melting point	Tensile strength, MPa	Yield strength, MPa	Elongation,%
8.0 g/cm³	1357-1385℃	≥550	≥240	≥25

*Specification

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)

*Feature

Incoloy 800H and 800HT are both austenitic high-strength solid-solution nickel-iron-chromium alloy with controlled levels of carbon, aluminium, titanium, silicon and manganese and controlled content of (Al + Ti). The analyses are similar to that of Incoloy 800,but a special solution anneal treatment (with grain sizes ≥ 90 μm/ASTM No. 4) gives significantly increased creep-rupture strength for Incoloy 800H above 600 ℃ and highest creep-rupture strength for Incoloy 800HT above 700 ℃ due to the precipitation of TiC.

*Application

Steam/hydrocarbon reforming for components such as: transfer piping, catalyst tubes (in low pressure processes) and quench-system piping,

Cracking tubes used in the production of acetic anhydride and ketene – high strength, resistance to carburization and to dry hydrogen chloride and chlorine