Haynes 242® alloy, after 1000 hours exposure at 650°C (1200°F)

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Haynes 242® alloy, after 1000 hours exposure at 650°C (1200°F)
Categories:	Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes:	Age-hardenable, high ductility in the aged condition, lower thermal expansion than most alloys, very good oxidation resistance up to 815°C, excellent low cycle fatigue properties, very good thermal stability, and resistance to high-temperature fluorine and fluoride environments. Applications include seal rings, containment rings, duct segments, casings, fasteners, rocket nozzles, pumps, hydrofluoric acid vapor containing processes, fluoroelastomer process equipment such as extrusion screws. Data provided by the manufacturer, Haynes International, Inc.
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Physical Properties	Original Value	Comments

Density	9.05 g/cc	at RT

Mechanical Properties	Original Value	Comments
Hardness, Brinell	257	Converted from Vickers hardness
Hardness, Knoop	286	Converted from Vickers hardness
Hardness, Rockwell C	19	Converted from Vickers hardness
Hardness, Vickers	78 @Temperature 870 °C
	140 @Temperature 760 °C
	218 @Temperature 650 °C
	263 @Temperature 540 °C
	271 @Temperature 425 °C
Tensile Strength, Ultimate	1340 MPa
Tensile Strength, Yield	820 MPa @Strain 0.2 %
Elongation at Break	28 %	in 50 mm
Reduction of Area	38 %
Modulus of Elasticity	229 GPa	RT
	152 GPa @Temperature 1000 °C
	163 GPa @Temperature 900 °C
	172 GPa @Temperature 800 °C
	185 GPa @Temperature 700 °C
	193 GPa @Temperature 600 °C
	199 GPa @Temperature 500 °C
	206 GPa @Temperature 400 °C
	213 GPa @Temperature 300 °C
	219 GPa @Temperature 200 °C
	225 GPa @Temperature 100 °C
Charpy Impact	56.0 J

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000122 ohm-cm	RT
	0.0001234 ohm-cm @Temperature 100 °C
	0.0001251 ohm-cm @Temperature 200 °C
	0.0001267 ohm-cm @Temperature 300 °C
	0.0001276 ohm-cm @Temperature 1000 °C
	0.000128 ohm-cm @Temperature 400 °C
	0.0001295 ohm-cm @Temperature 500 °C
	0.0001298 ohm-cm @Temperature 900 °C
	0.0001306 ohm-cm @Temperature 600 °C
	0.000132 ohm-cm @Temperature 700 °C
	0.0001324 ohm-cm @Temperature 800 °C

Thermal Properties	Original Value	Comments
CTE, linear	10.8 µm/m-°C @Temperature 25.0 - 100 °C
	11.3 µm/m-°C @Temperature 25.0 - 200 °C
	11.6 µm/m-°C @Temperature 25.0 - 300 °C
	11.9 µm/m-°C @Temperature 25.0 - 400 °C
	12.2 µm/m-°C @Temperature 25.0 - 500 °C
	12.3 µm/m-°C @Temperature 25.0 - 600 °C
	12.4 µm/m-°C @Temperature 25.0 - 650 °C
	13.0 µm/m-°C @Temperature 25.0 - 700 °C
	13.7 µm/m-°C @Temperature 25.0 - 750 °C
	14.0 µm/m-°C @Temperature 25.0 - 800 °C
	14.5 µm/m-°C @Temperature 25.0 - 900 °C
	15.0 µm/m-°C @Temperature 25.0 - 1000 °C
Specific Heat Capacity	0.386 J/g-°C	RT
	0.405 J/g-°C @Temperature 100 °C
	0.419 J/g-°C @Temperature 200 °C
	0.431 J/g-°C @Temperature 300 °C
	0.439 J/g-°C @Temperature 400 °C
	0.451 J/g-°C @Temperature 500 °C
	0.470 J/g-°C @Temperature 600 °C
	0.595 J/g-°C @Temperature 700 °C
	0.605 J/g-°C @Temperature 800 °C
	0.610 J/g-°C @Temperature 900 °C
	0.627 J/g-°C @Temperature 1000 °C
Thermal Conductivity	11.3 W/m-K	RT
	12.6 W/m-K @Temperature 100 °C
	14.2 W/m-K @Temperature 200 °C
	15.9 W/m-K @Temperature 300 °C
	17.5 W/m-K @Temperature 400 °C
	19.2 W/m-K @Temperature 500 °C
	20.9 W/m-K @Temperature 600 °C
	22.5 W/m-K @Temperature 700 °C
	24.2 W/m-K @Temperature 800 °C
	25.8 W/m-K @Temperature 900 °C
	27.5 W/m-K @Temperature 1000 °C
Melting Point	1290 - 1375 °C
Solidus	1290 °C
Liquidus	1375 °C
Maximum Service Temperature, Air	815 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	<= 0.50 %
Boron, B	<= 0.0060 %
Carbon, C	<= 0.030 %
Chromium, Cr	7.0 - 9.0 %
Cobalt, Co	<= 2.5 %
Copper, Cu	<= 0.50 %
Iron, Fe	<= 2.0 %
Manganese, Mn	<= 0.80 %
Molybdenum, Mo	24 - 26 %
Nickel, Ni	58 %	As Remainder
Silicon, Si	<= 0.80 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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NH24BR / 16551

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