Method of producing fe-ni series alloys having improved effect for restraining streaks during etching

Abstract From the Canadian patent

A continuously cast slab of Fe-Ni series alloy comprising 30 - 80 wt% of Ni or further 0.001 - 0.03 wt% of B and the balance of Fe is controlled to an eqiaxial crystal ratio of 20% or 30% in accordance with the existence or nonexistence of B content in the continuous casting and, if necessary, subjected to an electromagnetic stirring treatment or the like for controlling the eqiaxial crystal ratio and then heated at a temperature of not lower than 950°C 1000°C and, 1100°C to economically produce Fe-Ni series alloys having improved effect for restraining streaks during etching.