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前言我国新研制出来的新型通用高速钢W9-Mo3Cr4V(简称9—3—4—1)经81年冶金部一机部鉴定以来,已推广生产了五千多吨钢材,制成各种刀具,并获得了良好效果。与国际上广泛使用的通用高速钢M2相比,9—3—4—1钢采取适当降低钒含量(～
Preface China’s newly developed general-purpose high-speed steel W9-Mo3Cr4V (referred to as 9-3-4-1) Department of Metallurgy 81 years since the identification of a machine has been promoted production of more than 5,000 tons of steel, made of various tools, And get good results. Compared with the widely used common high-speed steel M2, 9-3-4-1 steel takes the appropriate reduction of vanadium content (~