1515# silicon metal Specification: chemical composition 1101#2202#1515#3305#421#553#Si999999.69999.298.5Fe0.10.20.150.30.40.5Al0.010.2/0.30.1-0.150.5Ca0.010.020.0150.050.10.3P0.0030.0030.0020.004/0.004Ni0.0050.005///Mn0.030.03///Ti0.020.020.03// 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!