鐵鎳合金:1J301J311J321J341J381J411J421J461J471J501J511J521J681J541J641J651J671J761J861J821J831J1161J1172J42J792J102J112J132J252J312J322J332J512J612J632J652J673J13J23J63J243J213J403J523J543J533J543J573J584J54J64J84J204J284J294J304J314J324J334J344J364J384J404J424J474J484J494J504J524J544J584J784J805J215J225J235J245J266J1026J156J206J216J226J236J24TM27500665060NI16CR80NI20CRTM6RL140R25R40TB1411TB1425TB1435 W18Cr4VCo5性能：鎢系含鈷高速工具鋼。是在W18Cr4V鋼的基礎上加入4.25%-5.75%（質(zhì)量分數(shù)）的鈷而成的。因此，除了具有W18Cr4V鋼的性能外，由于加入了鈷，提高了鋼的高溫硬度和紅硬性，所以可在較高的溫度下使用。該鋼還具有較高的韌性，且易磨削。用途：用于制造溫度較高的各種切削刀具，如車刀、刨刀、銑刀、拉刀、鉸刀、螺紋梳刀、成形刀具、鉆削工具、齒輪刀具、滾刀、刮刀、絲錐等。也可用于制造冷作模具。