Description Of No.4 Finsh Sheet
No.4 finish sheet,We also called No.4 finish stainless steel sheet,The No.4 finish simply as, “General purpose polished finish, one or both sides”.It also states, “No.4 - A linearly textured finish that may be produced by either mechanical polishing or rolling.Average surface roughness (Ra) may generally be up to 25 micro-inches (0.64 micrometres).
Features Of No.4 Finsh Sheet
It is characterized by short, parallel polishing lines and is the easiest of the stainless finishes to maintain.Depending on the requirements of the application, the final finish can be anywhere between 120 and 320 grit.(Higher grit numbers produce finer polishing lines and more reflective finishes.)The surface roughness is typically Ra 25 micro-inches or less.
Application Of No.4 Finish Sheet
No.4 finish sheet is the most popular for appliances, the food and beverage industry, elevators, escalators, hospitals, and any work area where there is food contact.
No.4,a type finish of stainless steel,it gives low gloss and best apparent flatness of panels.
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