| 摘要 |
The method is characterised by heating steel slab to above 1200 deg.C, hot-rolling at a finish temperature of 870-920 deg.C, coiling at 580-720 deg.C, cold-rolling to reduction of 60-85%, and holding a dipping temperature to 480-500 deg.C. The steel slab comprises up to 0.1 wt.% C, up to 0.3 wt.% Mn, up to 0.02 wt.% Si, up to 0.015 wt.% P. up to 0.015 wt.% S, 0.03-0.07 wt.% sol. Al, and the balance Fe.
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