碳化铌粉牌号：FNbC-1,FNbC-2外观：深***粉末牌号FNbC-1FNbC-2化学成分T.C10．8－11．411．0－11．6F.C≤0.15≤0.3杂质含量%不大于N0.150.25Ta0.250.25W0.150.2Mo0.10.1Ti0.020.05Si0.010.02Mn0.050.05Na0.0080.008Fe0.10.15Co0.10.15Cr0.10.15O1级0.40.42级0.30.3Sn0.010.05K0.0080.008Ca0.010.02费氏粒度1级2级1.0－1.51.5－4.0用途硬质合金)