Non-oriented electrical steel sheet and method for producing same

A method for producing a non-oriented electrical steel sheet comprising

• subjecting a steel slab having a chemical composition, which comprises C:
• not more than 0.0050 mass %, Si:
• 3.6 to 6.5 mass %, Mn:
• 0.05 to 2.0 mass %, P:
• not more than 0.10 mass %, S:
• not more than 0.0050 mass %, Al:
• 0.7 to 2.0 mass %, N:
• not more than 0.0050 mass %, Zn:
• 0.0005 to 0.0050 mass %, Ti:
• not more than 0.0030 mass %, Nb:
• not more than 0.0030 mass %, O:
• not more than 0.0050 mass % and the remainder being Fe and inevitable impurities, to a hot rolling, a hot-band annealing, a single cold rolling or two or more cold rollings with an intermediate annealing between each rolling to a final sheet thickness, and then a finish annealing,
• wherein
• each dew point of a heating zone and a soaking zone in the hot-band annealing is controlled to a range of 0 to 70° C., and
• an atmosphere of the finish annealing is a mixed gas of one or more selected from nitrogen, hydrogen and a noble gas and has a nitrogen content of not more than 30 vol % and a dew point of not higher than −20° C.