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Nickel base alloy Incoloy800

Alloy 800 - The 800 series of alloy (Incoloy 800, 800H and 800HT) are nickel-iron-chromium superalloys that have excellent properties of high temperature strength and resistance to oxidation, carburization and other types of high temperature corrosion. Alloy 800, 800H and 800HT are used in various applications from furnace components, petrochemical furnace cracker tubes to sheathing for electrical heating elements. Application: Chemical and petrochemical process piping, heat exchangers, furnace components, carburizing equipment, heating-element sheathing, and nuclear power steam-generator tubing.

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Product Description

Chemical Composition

Weight %	Ni	Cr	Fe	C	Al	Ti	Al+Ti
Alloy 800	30-35	19-23	≥39.5	≤0.10	0.15-0.60	0.15-0.60	0.30-1.20
Alloy 800H	30-35	19-23	39.5	0.05-0.10	0.15-0.60	0.15-0.60	0.30-1.20
Alloy 800HT	30-35	19-23	39.5	0.06-0.10	0.25-0.60	0.25-0.60	0.85-1.20

Typical Mechanical Properties

Material	Temp		Hardnes BHN	Tensile Strength MPa		Yield Strength (0.2% Offset)
Material	°F	°C	Hardnes BHN	ksi	MPa	ksi	MPa
Alloy 800H and Alloy 800HT	80	27	126	77.8	536	21.7	150
Alloy 800H and Alloy 800HT	800	425		67.5	465	18.8	130
Alloy 800H and Alloy 800HT	1000	540	90	62.7	432	13	90
Alloy 800H and Alloy 800HT	1200	650	84	54.8	378	13.5	93
Alloy 800H and Alloy 800HT	1300	705	82	47.7	329	15.8	109
Alloy 800H and Alloy 800HT	1400	760	74	34.2	236	13.1	90

Standard

Pipe	ASTM B 407/B 829, ASME SB 407/SB 829 (Seamless Pipe), BS 3074NA15 (Seamless Pipe), DIN 17459
Tube	ASTM B 163, ASME SB 163 (Seamless Condenser & Heat Exchanger Tubes), ASTM B 407/B 829, ASME SB 407/SB 829 (Seamless Tube), ASTM B 515/B 751, ASME SB 515/SB 751 (Welded Tubes), BS 3074NA15 (Seamless Tubes), ISO 6207, DIN 17459

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