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Master Bond adhesives

Sandvik Kanthal 230 Thermostatic bimetal
Categories: Metal; Superalloy; Iron Base

Material Notes: KANTHAL 230 is a thermostatic bimetal which is recommended for use in the temperature range -20 to +250°C.

Typical applications for KANTHAL 230 are in circuit breakers, motor protection units, thermostats, shower mixers, etc.

High-expansive component: 75-19-6 Alloy(412 Designation, 53% of thickness)

Low-expansive component: Invar 155 Alloy (450 Designation, 47% of thickness)

Information provided by Sandvik

Composition:

  • High-expansive component: Designation 412; 74.8% Mn; 19.2% Ni; 5.7% Cu
  • Low-expansive component: Designation 450; 0.12% Mn; 36.8% Ni; Bal. Fe
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Physical PropertiesMetricEnglishComments
Density 7.80 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Vickers 110110High-expansive component
 130130Low-expansive component
 210210Low-expansive component, Cold-worked 20%
 230230High-expansive component, Cold-worked 20%
Tensile Strength, Ultimate 450 MPa65300 psiLow-expansive component
 520 MPa75400 psiHigh-expansive component
Tensile Strength, Yield 250 MPa36300 psiHigh-expansive component
 290 MPa42100 psiLow-expansive component
Elongation at Break 40 %40 %Low-expansive component
 50 %50 %High-expansive component
Modulus of Elasticity 135 GPa19600 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  0.000104 ohm-cm
@Temperature 0.000 °C
0.000104 ohm-cm
@Temperature 32.0 °F
Bimetal
 0.000122 ohm-cm
@Temperature 200 °C
0.000122 ohm-cm
@Temperature 392 °F
Bimetal
 0.000128 ohm-cm
@Temperature 300 °C
0.000128 ohm-cm
@Temperature 572 °F
Bimetal
 
Thermal PropertiesMetricEnglishComments
CTE, linear  1.45 µm/m-°C
@Temperature 30.0 - 130 °C
0.806 µin/in-°F
@Temperature 86.0 - 266 °F
 30.0 µm/m-°C
@Temperature 30.0 - 130 °C
16.6 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 6.00 W/m-K
@Temperature 20.0 °C
41.6 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Maximum Service Temperature, Air 330 °C626 °F
Minimum Service Temperature, Air -20.0 °C-4.00 °F
 
Descriptive Properties
Linearity Range, °C-20 to 230
linearity Temperature Range, °C-20 to 250
Specific thermal curvature, /K0.000043
Specific deflection, /K0.0000227

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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