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Incoloy 800H

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Product Description

Features:

UNS Number N08810

Incoloy 800H has a restricted carbon content range of 0.05 to 0.10%, which is in the upper portion of that of Incoloy 800, and is annealed at 1149 to 1177℃ (Incoloy 800 is annealed at 983 to 1038℃). These differences impart it to have higher stress rupture and creep properties than Incoloy 800.

Applications:
Chemical and petrochemical process piping, high temperature heat exchangers, furnace components, carburizing equipment, heating-element sheathing, and nuclear power steam superheating tubing.

Forms of Incoloy 800H available at China Special Bolts
• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)
• Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
• Wire

Chemical composition:

%	Fe	Ni	Cr	C	Mn	Si	S	Cu	Al	Ti
Min	39.5	30.0	19.0	0.05					0.15	0.15
Max		35.0	23.0	0.10	1.50	1.00	0.015	0.75	0.60	0.60

Physical properties:

Density	7.94 g/cm3
Melting range	1357-1385℃

ASTM Specifications

Alloy	Pipe Smls	Pipe Welded	Tube Smls	Tube Welded	Sheet/Plate	Bar	Forging	Fitting
Alloy 800 (UNS N08800)	B407	B154	B163	B515	B409	B408	B564	B366
Alloy 800H (UNS N08810)	B407	B154	B163	B515	B409	B408	B564	B366
Alloy 800HT (UNS N08811)	B407	B154	B163	B515	B409	B408	B564	B366

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