Patent ID: 9721706
Date: 2017-08-01
CPC Classifications: B32B,C21D,C22C,H01F,Y10T

Claim:
1. A non-oriented electrical steel sheet comprising: in mass %, C: not less than 0.002% nor more than 0.01%; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 0.5%; Al: not less than 0.01% nor more than 3.0%; and at least one selected from the group consisting of Ti, V, Zr, and Nb, a balance being composed of Fe and inevitable impurities, wherein a value of a parameter Q represented by “Q=([Ti]/48+[V]/51+[Zr]/91+[Nb]/93)/([C]/12)” is not less than 0.9 nor more than 1.1, when contents of Ti, V, Zr, Nb, and C (mass %) are represented as [Ti], [V], [Zr], [Nb], and [C] respectively, a matrix of a metal structure is a ferrite phase, the metal structure does not comprise a non-recrystallized structure, an average grain size of ferrite grains constituting the ferrite phase is not less than 30 μm nor more than 200 μm, a precipitate comprising at least one selected from the group consisting of Ti, V, Zr, and Nb exists with a density of 1 particle/μm an average grain size of the precipitate is not less than 0.002 μm nor more than 0.2 μm.