| 摘要 |
A metal band saw is disclosed which is used to cut cutting-resistant materials such as SKD11, stainless steel, etc. and has characteristics of generating less chips on the cutting edge as well as improving wear resistance, resulting in very long service life. The blade material for the metallic band saw comprises high-speed steel containing 2wt.% or less of vanadium (V), wherein 3 area % or more of carbide grains having a major diameter of 3 mu m or more as observed in a metallograhic structure. The blade material further contains 20wt.% or more of (W+2Mo), 3-6wt.% Cr, 2wt.% or less Si, 2wt.% or less Mn, 1-1.4wt.%C and the remainder Fe and impurities. <IMAGE> |
