Process for production of coil of hot rolled strip of austenitic stainless steel
AssigneeNisshin Steel Co., Ltd.
InventorsTakamasa Yamamura, Seiji Mori, Koichi Asada, Kenichi Shinoda, Yuichi Higo
Life of this patent
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Abstract
A process for producing a coil of a hot rolled austenitic steel strip wherein a hot bar of austenitic stainless steel is hot rolled to a strip by multiple pass rolling with a total rolling reduction and finishing temperature controlled within the hatched area of FIG. 1; and wherein the hot rolled strip is allowed to cool in air for 3 to 10 seconds, cooled with water and then coiled at 400.degree. to 600.degree. C. The product has recrystallization substantially completed and sensitization prevented, and therefore, need not be annealed before it is subjected to a pickling process.
Claims2
A process for the production of a coil of a hot rolled strip of austenitic stainless steel having recrystallization substantially completed and sensitization prevented, wherein a hot bar of austenitic stainless steel is hot rolled to a strip by passing through a train of finishing mill stands with a total rolling reduction and a finishing temperature controlled so that they fall within the hatched area shown in FIG. 1 of the attached drawings;
- and wherein the hot rolled strip so obtained is allowed to cool in air for a period of from 3 to 10 seconds, cooled with water and then coiled at a temperature of from 400.degree. to 600.degree. C.
Dependencies are inferred from the claim text.