| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a 13 Cr series stainless thick steel plate usable as a product as tube making-welded. SOLUTION: Hot rolling to a slab composed of steel contg., by weight, <=0.03% C, <=1% Si, <=2% Mn, 9 to 13% Cr, 1 to 7% Ni, <=0.5% Ti, <=0.1% Al, 0 to 2% Cu, 0 to 3% Mo and the balance Fe with inevitable impurities is finished at >=800 deg.C, then it is cooled in a temp. range of 800 to 600 deg.C at an average cooling rate of >=10 deg.C/s and is cooled in the temp. range of <600 deg.C at the cooling rate equal to or below that in air cooling.
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