The test cold sheet of 2. 3Si non-oriented silicon steel (/% : 0.003C

2.30Si

0.16Mn

≤0.020P

≤0.005S

0.54Al) is first cold-rolled from normalized and un-normalizing 2.5 mm hot-rolled plate to 0.6 mm sheet (reduction 76% )

then intermediate annealed at 750-950 ℃ for 2.5 min and double cold-rolled to 0.5 mm sheet (reduction 16.7% )

the finished sheet annealed at 890 ℃ +960 ℃ for 2.5 min. Effect of the intermediate annealing temperature on grain size

texture and magnetic performance of the steel has been studied. Results show that with increasing intermediate annealing temperature the grain size before double cold-rolling and finished product increases

the adverse {111} and {112} texture components in finished products decrease and the magnetic performance improves. The magnetic performance of sheet cold-rolled by normalized hot-rolled plate is obviously better than that by un-normalized hot-rolled plate

but with higher intermediate annealing temperature the beneficial effect of normalizing on magnetic performance of sheet weakens.