Comprehensive Properties and Magnetic Anisotropy of Fe–Si–Ni–Al–Mn Nonoriented Silicon Steel Prepared by Twin‐Roll Strip Casting

High‐strength non‐oriented silicon steel prepared by twin‐roll strip casting technology, replacing the conventional hot rolling method with a high compression ratio, effectively diminishes the γ texture and increases the intensity of cube and Goss orientation to 3.70 and 3.68, respectively, in recrystallization texture. The high density of NiAl precipitates with an average radius of 3.47 nm and a volume fraction of 0.9% is obtained after peak aging, significantly enhancing mechanical properties while minimizing magnetic performance loss. These precipitates maintain a coherent relationship with the matrix, preventing increased magnetic anisotropy. During peak aging, P 10/400 rises from 25.0 to 31.3 W kg −1 , while B 50 slightly decreases from 1.66 to 1.62 T. Yield and tensile strength improve significantly from 576 and 733 MPa to 889 and 1053 MPa, respectively, with an elongation rate of 7.6%. The findings reveal that enhancing the proportion of Goss orientation intensifies the magnetic anisotropy between 45° and 90°. The most unfavorable angle of B 50 and core loss in low‐frequency conditions is 60°, the worst angle of Goss orientation. The strip casting process, combined with the incorporation of coherent NiAl precipitates, can effectively improve the comprehensive properties of nonoriented silicon steel, informing potential industrial applications.