General
Property | Temperature | Value |
---|---|---|
Density | 23.0 °C | 8.9 g/cm³ Show Material materials with Density of 8.9 g/cm³ |
Mechanical
Property | Temperature | Value | Comment |
---|---|---|---|
Tensile strength | 23.0 °C | 480 MPa Show Material materials with Tensile strength of 480 MPa | annealed |
Thermal
Property | Temperature | Value |
---|---|---|
Coefficient of thermal expansion | 200.0 °C | 1.45E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.45E-5 1/K |
Melting point | 1225 - 1300 °C Show Material materials with Melting point of 1225 - 1300 °C | |
Specific heat capacity | 23.0 °C | 395 J/(kg·K) Show Material materials with Specific heat capacity of 395 J/(kg·K) |
Thermal conductivity | 100.0 °C | 25.3 W/(m·K) Show Material materials with Thermal conductivity of 25.3 W/(m·K) |
Electrical
Property | Temperature | Value |
---|---|---|
Electrical resistivity | 23.0 °C | 5.2E-7 Ω·m Show Material materials with Electrical resistivity of 5.2E-7 Ω·m |
Temperature coefficient of resistance | 23.0 °C | 2E-5 1/K Show Material materials with Temperature coefficient of resistance of 2E-5 1/K |
Chemical properties
Technological properties
Property | ||
---|---|---|
Application areas | It is an ideal alloy for winding heavy-duty industrial rheostats and electric motor starter resistances. High specific resistance, together with good ductility and resistance to corrosion are all-important requirements in the category, and Constantans satisfies the most demanding specifications. It is commonly used as a thermocouple alloy, in conjunctions with copper up to 400 °C and with iron up to 800 °C. In addition, it is used in precision resistors, temperature stable potentiometer, volume control devices and strain gauges. In the resistor field, its high resistance and negligible temperature coefficient of resistance are its main attractions. |