Process for the production of hot rolled steel or heavy plates

Abstract From the Canadian patent

Hot rolled strip or heavy plate is produced from stainless and refractory steels or from forgeable alloys on a nickel basis with a final thickness in the range of 5 to 60 mm by the production of a slab from monobloc casting or by continuous casting and heating the slab at a temperature above 1100°C followed by the hot rolling of the slab and accelerated cooling of the product rolled to the end thickness. The heated slab is rolled without interruption first to a maximum of 1/6 of its initial thickness, mainly by deformation passes in which the degree of deformation per pass is greater than that shown by curve A in Figure 1, in dependence on the surface temperature of the product. Then finish …