Non-directional oriented silicon-iron

Claim 1

A PROCESS OF PRODUCING COLD ROLLED SILICON-IRON ALLOY SHEET STOCK CONTAINING 2% TO 3.5% SILICON, CHARACTERIZED BY A GRAIN ORIENTATION IN WHICH THE (100) PLANES OF THE CRYSTALS ARE SUBSTANTIALLY PARALLEL TO THE SHEET SURFACE AND THE EDGES OF THE CYSTALS ATR RANDOMLY ORIENTED IN THE PLANE OF THE STOCK, WHICH COMPRISES ESSENTIALLY THE STEPS OF FORMIMG A CASTING THE WIDTH OF WHICH IS AT LEAST ABOUT 20 TIMES THE THICKNESS THEREOF, ROLLING THE ENTIRE CASTING TO SHEET GAUGES IN THE DIRECTION OF ITS GREATEST DIMENSION, SAID ROLLING COMPRISING AT LEAST ONE COLD REDUCTION, EACH COLD REDUCTION SERVING TO REDUCE THE THICKNESS OF SAID MATERIAL FROM 55% TO 85%, AND ANNEALING SAID SHEET MATERIAL AT THE FINAL GAUGE AT A TEMPERATURE BETWEEN 1400* AND 2200* F. IN A NON-CARBURIZING REDUCING AT MOSPHERE.