... , RE, Ca, Al, Fe. 3. Size:0.5-3mm. Ferro Silicon Magnesium1. FeSiMg alloys can be used for all grades of ... : 4.5-5.5%, RE: 0.3-1.0%, Ca: 0.2-1.0%, Al: 1.2%max.FeSiMg6RE1 Si: 45-55%, Mg ... : 5.5-6.5%, RE: 0.3-1.0%, Ca: 0.2-1.0%, Al: 1.2%max.FeSiMg7RE1 Si: 45-55%, Mg ... : 6.5-7.5%, RE: 0.3-1.0%, Ca: 0.2-1.0%, Al: 1.2%max.Remark: Tailor-made grades are ...