| abstract |
The present invention relates to a high speed steel for saw blades, comprising, as mass%, an alloy element composed of 0.5 to 1.5 carbon, 1.0 to 10.0 chromium, 3.0 to 10.0 equivalent tungsten, and 0.5 to 2.0 niobium given in relation to 2MO + W. Indicates. Niobium can be partially or wholly replaced with vanadium at a ratio of 2% niobium for each 1% vanadium, with vanadium being between 0.3 and 2.0. Vanadium may be partially or wholly replaced with niobium at a ratio of 2% niobium for each 1% vanadium, with silicon being between 0.3 and 3.5. Silicon may be partially or wholly replaced with aluminum in a ratio of 1: 1, cobalt is less than 8, leaving substantial Fe and impurities essential for the preparation process. |