Chemical Composition (%) Chemical Composition Limits Weight % Ni Cr Fe C Al Ti Al+Ti Alloy 800 30-35 19-23 39.5 min 0.10 max 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 ASTM Grain Size – Alloy 800 is not specified, Alloy 800H is 5 or coarser, Alloy 800HT is 5 or coarser.

Mechanical Properties (Typical) Material Temp Hardnes BHN Tensile Strength MPa Yield Strength (0.2% Offset) °F °C 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 13.0 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 Alloy 800HT is a Trademark of Special Metals Corporation

Applications These fantastic properties are the primary reasons of wide applications of Incoloy 800H nickel alloy, including nitric acid condenser, steam heating pipe, heating element tube, etc. ▪ Industrial furnace components and equipment ▪ Petrochemical and chemical processing ▪ Equipment for Heat-Treating ▪ Pressure vessels and heat exchangers ▪ Hydrocarbon cracking

Chemical Composition (%) Chemical Composition Limits Weight % Ni Cr Fe C Al Ti Al+Ti Alloy 800 30-35 19-23 39.5 min 0.10 max 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 ASTM Grain Size – Alloy 800 is not specified, Alloy 800H is 5 or coarser, Alloy 800HT is 5 or coarser.

Mechanical Properties (Typical) Material Temp Hardnes BHN Tensile Strength MPa Yield Strength (0.2% Offset) °F °C 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 13.0 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 Alloy 800HT is a Trademark of Special Metals Corporation

Applications These fantastic properties are the primary reasons of wide applications of Incoloy 800H nickel alloy, including nitric acid condenser, steam heating pipe, heating element tube, etc. ▪ Industrial furnace components and equipment ▪ Petrochemical and chemical processing ▪ Equipment for Heat-Treating ▪ Pressure vessels and heat exchangers ▪ Hydrocarbon cracking

Alloy 800/800H/800HT

Grade: Incoloy 800/Incoloy 800H/Incoloy 800HT/Alloy 800/Alloy 800H/Alloy 800HT/UNS N08800/UNS N08810/UNS N08811/W.Nr. 1.4876/W.Nr. 1.4958/W.Nr. 1.4959

Sheet/Plate: 0.3mm-150mm

Strip/Foil: 0.02mm-16mm

Pipe: 6mm*0.5mm-1200mm*100mm

Bar: Ф6mm – Ф600mm

Wire: Ф0.01mm – Ф6mm

Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.

Standard: ASTM/ASME/AMS

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.

Chemical Composition (%)

Chemical Composition Limits
Weight %	Ni	Cr	Fe	C	Al	Ti	Al+Ti
Alloy 800	30-35	19-23	39.5 min	0.10 max	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
ASTM Grain Size – Alloy 800 is not specified, Alloy 800H is 5 or coarser, Alloy 800HT is 5 or coarser.

Mechanical Properties (Typical)

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	13.0	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
Alloy 800HT is a Trademark of Special Metals Corporation

Applications

These fantastic properties are the primary reasons of wide applications of Incoloy 800H nickel alloy, including nitric acid condenser, steam heating pipe, heating element tube, etc.
▪ Industrial furnace components and equipment
▪ Petrochemical and chemical processing
▪ Equipment for Heat-Treating
▪ Pressure vessels and heat exchangers
▪ Hydrocarbon cracking

Introduction

Specification

Chemical Composition (%)

Chemical Composition Limits
Weight %	Ni	Cr	Fe	C	Al	Ti	Al+Ti
Alloy 800	30-35	19-23	39.5 min	0.10 max	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
ASTM Grain Size – Alloy 800 is not specified, Alloy 800H is 5 or coarser, Alloy 800HT is 5 or coarser.

Mechanical

Mechanical Properties (Typical)

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	13.0	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
Alloy 800HT is a Trademark of Special Metals Corporation

Application

Applications

These fantastic properties are the primary reasons of wide applications of Incoloy 800H nickel alloy, including nitric acid condenser, steam heating pipe, heating element tube, etc.
▪ Industrial furnace components and equipment
▪ Petrochemical and chemical processing
▪ Equipment for Heat-Treating
▪ Pressure vessels and heat exchangers
▪ Hydrocarbon cracking