Silicon Metal Type: 2202, 3303, 3205, 411, 421, 441, 553 Size: 10-100 mm Usage: raw material for industries and chemicals Silicon Metal1) ... 2202Si: 99.5%min, Fe: 0.2%max, Al ... , Ca: 0.02%max, P: 0.004%max2) 3303Si: 99.3%min, Fe: 0.3%max, Al: 0.3%max ... Ca: 0.03%max, P: 0.005%max3) 411Si: 99.2%min, Fe: 0.4%max, Al: 0.1%max ...