| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method for a boron-containing austenitic stainless steel plate superior in ductility and tenacity, capable of preventing the occurrence of crack at hot rolling, mass-producing and having good production efficiency. SOLUTION: This method comprises heating an austenitic stainless steel slab comprising, by mass, below 0.08% C, below 1% Si, below 2% Mn, 16-25% Cr, 7-15% Ni, 0.1-1.5% Mo, 0.3-1.5% B, 0.005-0.3% sol.Al, below 0.05% N and the balance Fe with impurities to a temperature of 1,050-1,200 deg.C, and hot rolling the slab in such a manner that total rolling reduction in the temperature range of 850-1,050 deg.C becomes over 30%.
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