Method of manufacturing austenitic stainless steel plates

Abstract From the Canadian patent

An austenitic stainless steel plate containing up to 0.08 wt.% of carbon, up to 1.0 wt.% of silicon up to 2.0 wt.%, of manganese, 8.0 - 16.0 wt.% of nickel 16.0 - 20.0 wt.%, of chromium, 0 - 30 wt.% of molybdenum up to 0.25 wt.% of, nitrogen and the balance of iron and inherent impurities is manufactured by rolling a stainless steel blank at a temperature higher than TR(°C) = 940 + 30 (%Mo) and then, cooling the rolled blank from a temperature above 800°C to a temperature below 500°C at a cooling speed higher than Rc (°C/sec.) shown by the following equations: log (Rc) = - 0.32 + 14 (%C + %N) - 0.067 (%Mo) when (%C + %N) ? 1.0 wt.% ; and, log (Rc) = 1.08 - 0.067 (%Mo) when (%C + %N) > 1.0 …