What Is Stainless Steel Sheet ?
A stainless steel sheet is a type of sheet metal made from an alloy of steel and chromium. Stainless steel sheets are normally classified into hot and cold- rolled types, mainly including 200, 300, 400 series alloys. 200 Series has low nickel; 300 series contains chromium and nickel as their major alloying additions; 400 Series is formed by ferritic and martensitic stainless steel. Type 200/300/400 series alloys available in sheets at Grand Metal include 201, 202,304, 316, 309,301,321,410,420,430.
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.
A moderately rough and dull surface, ensuring that the stainless steel will meet mechanical property requirements.