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Electric heater electric heating alloy material and its requirements

Author: Source: Time: 2019-12-17 Category: Industry News
There are two types of metal electric heating materials used as electric heaters: iron chromium aluminum alloy and nickel chromium alloy.

There are two types of metal electric heating materials used as electric heaters : iron chromium aluminum alloy and nickel chromium alloy. Regarding the varieties, specifications, properties and related technical parameters of the electrothermal alloy materials, I will not repeat them here.

In China's electric heaters, the main brand of electric heating materials is 0cr25A15. Secondly, the commonly used grades are Ni80Cr20, Ni60crl5, Ni35Cr20 and so on. In addition, there are many grades of FeCrAl. In foreign electric heaters, Kangtaier DsD alloy material is widely used.

The requirements of electric heaters for electric heating materials are becoming more and more strict. The main requirements are:
1. Long service life at high temperature;
2. The resistivity should be high and uniform, and the deviation of each batch is not large;
3. The temperature coefficient of resistance is as low as possible;
4. The cold helical stretch should be uniform;
5.High creep strength at high temperature
6. Low price.