Non-oriented electrical steel and preparing method and application thereof

The invention discloses non-oriented electrical steel and a preparing method and application thereof. The non-oriented electrical steel comprises chemical components including, by mass percent, not larger than 0.004% of C, 1.8 to 4.00% of Si, 0.30 to 1.20% of Al, 0.40 to 1.0% of Mn, 0.50 to 2.0% of Ni, 0.50 to 2.0% of Cr, 0.010 to 0.10% of Sn, not larger than 0.0020% of S, not larger than 0.002% of N, not larger than 0.005% of V, not larger than 0.005% of Ti, not larger than 0.002% of P, not larger than 0.7% of the sum of mass percents of Ga and Hf, and the balance Fe and inevitable impurities. Component design is adopted, a preparing process is matched, the obtained non-oriented electrical steel is excellent in comprehensive properties of iron loss, magnetic induction and mechanical properties, in the production process, no strip breaking exists, and reliability and high efficiency of a motor core can be improved. 本发明公开了一种无取向电工钢及其制备方法、应用，所述无取向电工钢的化学组分及化学组分的质量分数为：C≤0.0040％；Si：1.8～4.00％，Al：0.30～1.20％；Mn：0.40～1