Resistalloy International Fecralloy™ 145 Electrical Resistance Steel

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Resistalloy International Fecralloy™ 145 Electrical Resistance Steel
Categories:	Metal; Electronic/Magnetic Alloy; Ferrous Metal; Stainless Steel; Superalloy
Material Notes:	Ferritic stainless steel with aluminum. Available as wire. Used mainly for electrical elements in both industrial and domestic applications. Industrial applications vary from small laboratory kilns to heavy-duty heat-treatment furnaces under all types of atmospheres. "Fecralloy" an Fe-Cr-Al steel containing "yttrium" is a versatile alloy and is suitable for use over a wide range up to 1300°C. The "yttrium" is the key to its longer high temperature life, having greater oxidation resistance and form stability over other resistance alloys. "Fecralloy" is the registered trademark of the UK Atomic Energy Authority (Now AEA Technology, Harwell). Information provided by Resistalloy International Limited.
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Physical Properties	Metric	English	Comments

Density	7.10 g/cc	0.257 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	230	230
Tensile Strength, Ultimate	750 MPa	109000 psi
	34.0 MPa @Temperature 900 °C	4930 psi @Temperature 1650 °F
Tensile Strength, Yield	550 MPa	79800 psi
Elongation at Break	16 - 20 % @Thickness 50.0 mm	16 - 20 % @Thickness 1.97 in

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000145 ohm-cm	0.000145 ohm-cm	Temperature Factor is 1.03 at 800°C (1470°F). Temperature Factor is 1.04 at 1000°C (1830°F). Temperature Factor is 1.04 at 1200°C (2190°F).
Curie Temperature	600 °C	1110 °F

Thermal Properties	Metric	English	Comments
CTE, linear	11.0 µm/m-°C @Temperature 20.0 - 250 °C	6.11 µin/in-°F @Temperature 68.0 - 482 °F
	12.0 µm/m-°C @Temperature 20.0 - 500 °C	6.67 µin/in-°F @Temperature 68.0 - 932 °F
	15.0 µm/m-°C @Temperature 20.0 - 1000 °C	8.33 µin/in-°F @Temperature 68.0 - 1830 °F
Specific Heat Capacity	0.460 J/g-°C	0.110 BTU/lb-°F
Thermal Conductivity	16.0 W/m-K	111 BTU-in/hr-ft²-°F
Melting Point	1500 °C	2730 °F
Maximum Service Temperature, Air	1400 °C	2550 °F

Optical Properties	Metric	English	Comments
Emissivity (0-1)	0.70	0.70	Fully Oxidized

Component Elements Properties	Metric	English	Comments
Aluminum, Al	5.8 %	5.8 %
Chromium, Cr	22 %	22 %
Iron, Fe	72 %	72 %	As remainder

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