Non-oriented electrical steel sheet and method of manufacturing non-oriented electrical steel sheet

1. A method of manufacturing a non-oriented electrical steel sheet with components consisting of, in mass %:

C: not less than 0.0001% and not more than 0.0040%,

Si: not less than 3.2% and not more than 3.7%,

sol.Al: not less than 0.3% and not more than 1.0%,

Mn: not less than 0.5% and not more than 1.5%,

Sn: not less than 0.005% and not more than 0.1%,

Ti: not less than 0.0001% and not more than 0.0030%,

S: not less than 0.0001% and not more than 0.0020%,

N: not less than 0.0001% and not more than 0.003%,

Ni: not less than 0.001% and not more than 0.2%, and

P: not less than 0.005% and not more than 0.05%,

with a balance consisting of Fe and impurities, wherein

a resistivity ρ at room temperature ≧60 μΩcm, and saturation magnetic flux density Bs at room temperature ≧1.945 T are established, and

the components contained satisfy 3.5≦Si+(⅔)×sol.Al+(⅕)×Mn≦4.25, the method including:

hot-rolling a slab containing the components;

after the hot-rolling, applying hot-rolled-sheet annealing or self-annealing, or without applying the hot-rolled-sheet annealing, and applying pickling in either case;

applying cold-rolling only once, and

after the cold-rolling, applying final-annealing at 1000° C. or more, and applying coating,

wherein during the cold-rolling, the temperature of a steel sheet when the cold-rolling starts is set to not less than 50° C. and not more than 138° C., and a rate at which the steel sheet passes through a first pass during rolling is set to not less than 60 m/min and not more than 200 m/min.

2. The method according to claim 1 , wherein the non-oriented electrical steel sheet further satisfies sol.Al<Mn.