One kind of a medium temperature slab heating temperature of steel production and production method HiB

One kind of a medium temperature slab heating temperature HiB steel production, as the components and wt%: C: 0.055% ~ 0.095%, Si: 2.95% ~ 3.35%, Mn: 0.040% ~ 0.070%, P: ≤0.02% , S: 0.010 ~ 0.025%, N: 0.004% ~ 0.010%, Sn: 0.05% ~ 0.15%, Cr: 0.005% ~ 0.04%, Cu: 0.01% ~ 0.1%, Als: 0.020% ~ 0.032%, Mo: 0.0020% ~ 0.010%, Se: 0.001% ~ 0.05%, Sb: 0.001% ~ 0.02%; production steps of: heating the slab to 1280 ~ 1350 ℃; hot rolling; coiling; or for a period of two-stage normalization of formula ; secondary cold rolling method using the rolling once or cold rolling method having intermediate annealing; decarburization annealing in a wet N2 + H2 atmosphere; or formula for a period of two stage nitriding annealing; coating a release agent; high temperature annealing; pull encompasses the flattening annealing; insulating coating layer. By medium-temperature slab heating temperature of steel production HiB present invention can solve the slab heating temperature to reduce the current difficulties with congenital and acquired inhibitor, unstable performance issues; the innate and acquired inhibitor inhibitor centralized control, to ensure that the product stability of the final magnetic energy.