ferrotungsten (with a tungsten content of 70% -80%) and is an alloy composed of tungsten and iron, used as an alloy additive in steelmaking. There are two commonly used types of tungsten iron, which contain 70% and 80% tungsten. Density (20 ℃) 19.3g/cm3. Melting point 3400 ℃. Boiling point 5555 ℃.
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