Stainless steel plate

摘要

A stainless steel plate is manufactured by performing temper rolling using a dull roller after the finish cold rolling and bright annealing. The stainless steel plate has an arithmetic mean roughness Ra of 0.2 to 1.2 μm in a direction perpendicular to the rolling direction of the steel plate surface. Furthermore, the stainless steel plate has a transfer ratio of 15 to 70% which is an area ratio of a portion onto which a dull pattern is transferred relative to the steel plate surface. In addition, the micro-pits being formed in the steel plate surface, having a depth of 0.5 μm or more, and having an opening area of 10 μm2 or more, have an existing density in the steel plate surface of 10.0 or less per 0.01 mm2, and an opening area ratio in the steel plate surface of 1.0% or less.

主权项

1. A stainless steel plate for which temper rolling is performed by using a dull roller after a finish cold rolling and bright annealing, wherein
an arithmetic mean roughness Ra in a direction perpendicular to a rolling direction of the steel plate surface is 0.2 to 1.2 μm; a transfer ratio, which is an area ratio of a portion onto which a dull pattern is transferred relative to the steel plate surface, is 15 to 70%; and a micro-pit, being formed in the steel plate surface, having a depth of 0.5 μm or more, and having an opening area of 10 μm2 or more, has an existing density in the steel plate surface of 10.0 or less per 0.01 mm2, and an opening area ratio in the steel plate surface of 1.0% or less.