Incoloy® 800HT Plate

Incoloy 800HT is a nickel-iron-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. Incoloy 800HT maintains a stable, austenitic structure during prolonged exposure to high temperatures. Incoloy 800HT is used for process piping, heat exchangers, carburizing equipment, heating-element sheathing and nuclear steam-generator tubing. Standard product forms are round, flats, forging stock, pipe, tube, plate, sheet, strip and wire.

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Unit of Measure

Items	I800HT-1875 Incoloy® 800HT Plate	I800HT-250 Incoloy® 800HT Plate	I800HT-3125 Incoloy® 800HT Plate	I800HT-375 Incoloy® 800HT Plate	I800HT-500 Incoloy® 800HT Plate
Material	N/A Incoloy®
Shapeform	N/A Plates
Thickness	N/A 3/16 inches	N/A 1/4 inches	N/A 5/16 inches	N/A 3/8 inches	N/A 1/2 inches
Thickness	N/A 0.1875 inches4.75 mm	N/A 0.25 inches6.3500 mm	N/A 0.3125 inches7.92 mm	N/A 0.375 inches9.52 mm	N/A 0.500 inches12.7 mm
Plate Weight per Unit Area	N/A 0.06000 lbs/in²42.184176 kg/m²	N/A 0.07900 lbs/in²55.5424984 kg/m²	N/A 0.09700 lbs/in²68.1977512 kg/m²	N/A 0.1169 lbs/in²82.18883624 kg/m²	N/A 0.15350 lbs/in²107.9211836 kg/m²
Alloy	N/A Incoloy 800HT
Basic Composition	N/A 0.015% Max. Sulphur 0.10% Carbon 0.60% Aluminum 0.60% Titanium 0.75% Max. Copper 1.0% Max. Silicon 1.20% Aluminum +Titanium 1.50% Max. Manganese 23.0% Chrominum 35.0% Nickel 39.5% Min. Iron
Density	N/A 0.287 lbs/in³7.94 g/cm³
ASTM Specification	N/A ASME SB-409 ASTM B409 UNS N08811
Melting Temperature Range	N/A 2475 to 2525 ºF1357 to 1385 ºC
Rupture Strength (1000 h at 1200°F/650°C)	N/A 24000 psi165 MPa
Rupture Strength (1000 h at 1300°F/705°C)	N/A 15000 psi105 MPa
Rupture Strength (1000 h at 1400°F/760°C)	N/A 10000 psi70 MPa
Rupture Strength (1000 h at 1600°F/870°C)	N/A 4700 psi32 MPa
Rupture Strength (1000 h at 1800°F/980°C)	N/A 2000 psi14 MPa

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