What is No.1 Finsh Stinless Steel？
No. 1 Finish is produced by rolling stainless steel that has been heated prior to rolling (hot-rolling). This is followed by a heat treatment that produces a uniform microstructure (annealing) and ensures that the stainless steel will meet mechanical property requirements. After these processing steps, the surface has a dark, non-uniform appearance called “scale.” Surface chromium has been lost during the previous processing steps, and, without removal of the scale, the stainless steel would not provide the expected level of corrosion resistance. Chemical removal of this scale is called pickling or descaling, and it is the final processing step.
The features of No. 1 stainless steel
A No. 1 finish stainless steel has rough, dull, and non-uniform appearance.
No. 1 is a rough, dull and non-uniform finish, which results from hot rolling to the specified thickness, followed by annealing and descaling.
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