tantalum sheet 1.colour:dark gray or charcoal gray 2.purity:>=99.9% 3.standard:ASTM, AMS,ISO tantalum sheet1.size: thickness:0.03-50mm width:100-200mm length:150-1000mm2.chemical compositionChemistry %DesignationChief componentImpurities maxmiumTaNbFeSiNiWMoTiNbOCHNTa1Remainder 0.0050.0050.0020.010.010.0020.050.0150.010.00150.005Ta2Remainder 0.030.020.0050.040.030.0050.10.030.020.0050.0253. ...