W18Cr4VCo5是鎢系含鉆高速鋼
W18Cr4VCo5是鎢系含鉆公路鋼。化學式成分表(%):0.75~0.85C,0.20~0.40Si,0.20~0.40Mn,≤0.030S,≤0.030P,3.75~5.00cr,≤0.30Ni,≤0.25Cu,1.80~2.40V,0.50~1.25Mo,17.50~19.00W,7.00~9.50Co。熱凈化處工院藝:820~870℃提前預熱,1270~1290℃(鹽浴爐)或1280~1300℃(箱式爐)高溫,油冷,540~560c回火2次,只要一2h。首要特性:普通較W18Cr4...
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