| 摘要 |
Provided is a method for producing steel for blades, with which it is possible to adjust the carbide density to a high carbide density, even if a batch-type annealing furnace is used. This method for producing steel for blades having a metal composition of 0.55 mass% to 0.80 mass% C, not more than 1.0 mass% Si, not more than 1.0 mass % Mn, 12.0 mass % to 14.0 mass% Cr, not more than 1.0 mass% Mo, not more than 1.0 mass% Ni, with the remainder made up of Fe and unavoidable impurities, involves at least the following steps: a batch annealing step in which batch annealing is carried out on a material for cold-rolling having the aforementioned metal composition at a temperature exceeding 500°C but less than 700°C for 3 to 30 hours to obtain a batch-annealed material; a continuous annealing step in which, after the batch annealing step, the batch-annealed material having been heated to at least the Ac1 critical point of the aforementioned metal composition is subjected to continuous annealing for 5-30 minutes, to obtain a continuously-annealed material; and a cold-rolling step in which the continuously annealed material having been subjected to the continuously annealing step is cold-rolled. The continuous annealing step and the cold-rolling step are carried out at least once each. |
