1.电解镍(GB/T 6516—1997)

表4-1-1-1电解镍牌号和化学成分%牌号Ni9999Ni9996Ni9990Ni9950Ni9920镍+钴,≥99.9999.9699.999.599.2钴,≤0.0050.020.080.150.50碳,≤0.0050.010.010.020.10硅,≤0.0010.0020.002--磷,≤0.0010.0010.0010.0030.02硫,≤0.0010.0010.0010.0030.02铁,≤0.0020.010.020.200.50铜,≤0.00150.010.02 ......（本文共 484 字 ）     [阅读本文] >>