Sandvik Kanthal 50 HT Thermostatic bimetal

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Sandvik Kanthal 50 HT Thermostatic bimetal
Categories:	Metal; Superalloy; Iron Base
Material Notes:	KANTHAL 50 HT is a high temperature type thermostatic bimetal which is recommended for use in corrosive environments in the temperature range -20 to +550 °C. Typical applications for KANTHAL 50 HT are in circuit breakers, motor protection units, thermostats, shower mixers, etc. High-expansive component: 18-10 Alloy(2333 Designation, 50% of thickness) Low-expansive component: 17 Alloy (2320 Designation, 50% of thickness) Information provided by Sandvik Composition: High-expansive component: Designation 2333; 18% Cr; 10% Ni; Bal. Fe Low-expansive component: Designation 2320; 17% Cr; Bal. Fe
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Physical Properties	Metric	English	Comments

Density	7.80 g/cc	0.282 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	155	155	High-expansive component
	180	180	Low-expansive component
	240	240	Low-expansive component, Cold-worked 20%
	340	340	High-expansive component, Cold-worked 20%
Tensile Strength, Ultimate	450 MPa	65300 psi	Low-expansive component
	730 MPa	106000 psi	High-expansive component
Tensile Strength, Yield	310 MPa	45000 psi	Low-expansive component
	370 MPa	53700 psi	High-expansive component
Elongation at Break	30 %	30 %	Low-expansive component
	50 %	50 %	High-expansive component
Modulus of Elasticity	200 GPa	29000 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000635 ohm-cm @Temperature 0.000 °C	0.0000635 ohm-cm @Temperature 32.0 °F	Bimetal
	0.0000780 ohm-cm @Temperature 200 °C	0.0000780 ohm-cm @Temperature 392 °F	Bimetal
	0.0000830 ohm-cm @Temperature 300 °C	0.0000830 ohm-cm @Temperature 572 °F	Bimetal

Thermal Properties	Metric	English	Comments
CTE, linear	10.0 µm/m-°C @Temperature 30.0 - 130 °C	5.56 µin/in-°F @Temperature 86.0 - 266 °F
	16.0 µm/m-°C @Temperature 30.0 - 130 °C	8.89 µin/in-°F @Temperature 86.0 - 266 °F	High-expansive component
Specific Heat Capacity	0.460 J/g-°C @Temperature 20.0 °C	0.110 BTU/lb-°F @Temperature 68.0 °F
Thermal Conductivity	20.0 W/m-K @Temperature 20.0 °C	139 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Maximum Service Temperature, Air	550 °C	1020 °F
Minimum Service Temperature, Air	-20.0 °C	-4.00 °F

Descriptive Properties
Linearity Range, °C	-20 to 500
linearity Temperature Range, °C	-20 to 550
Specific thermal curvature, /K	0.0000094
Specific deflection, /K	0.000005

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