553# silicon metal Specification: chemical composition 1101#2202#3303#3305#441#553#Si999999999998.5Fe0.10.20.30.30.40.5Al0.010.20.30.30.40.5Ca0.010.020.030.050.10.3P0.0030.0030.0030.0040.0040.004Ni0.0050.0050.005///Mn0.030.030.03///Ti0.020.020.030.03// We have high-purity chemical and metallurgical grade silicon metal and we could supply you all kinds of silicon metal like 553#, 441#, 421#, 3303#, 2202#, etc. as your requirements. For more details please contact us without hesitate!