Indicators of fire and explosion dust: Auto-ignition temperature — 860 ° C; Maximum explosion pressure 620 kPa; The rate of pressure increase in the explosion of 26,000 kPa · s-1; The minimum ignition energy is 280 mJ. The intensity of gassing of the wet powder of the 0−3 mm fraction is 0.142 dm3 / kg · h, the dry polydisperse 0.03 dm3 / kg · h; The lower concentration limit of flame spread is 150 g / m3; self-ignition temperature of the aerosol — more than 1000 ° C;
It is used in steel making and foundry industry for deoxidization and as an alloying element in the production of corrosion-and heat-resistant, electrical and spring-spring steels.