Stainless Steel Sheets
The stainless steel’s natural properties such as anti resistance to corrosion and staining make it ideal for different commercial uses. They are mainly used as the main materials in cooking utensils, fasteners, cutlery, flatware, hardware, architectural designs as well as in various other industries. A variety of different modifications have been made over the years to facilitate particular needs. Thence, below are the five common group divisions of stainless steel:
- Martensitic stainless steels- contains chromium (12-14%), molybdenum (0.2-1%), nickel (0-<2%), and carbon (about 0.1-1%).
- Ferritic stainless steels - contain 10.5% and 27% chromium and very little nickel.
- Austenitic stainless steels - contains a maximum of 0.15% carbon, a minimum of 16% chromium and sufficient nickel and/or manganese to retain an austenitic structure at all temperatures.
- Duplex (ferritic-austenitic) stainless steels – contains high chromium (19–28%) and molybdenum (up to 5%) and lower nickel contents.
- Precipitation-hardening stainless steels – mostly contains about 17% chromium and 4% nickel.
Aside from the major groups, stainless steels are also made available into various forms. These are: plate, sheet, strip, foil, bar, wire, semi-finished products, pipes, tubes, and tubing.
Now, we focus on stainless steel sheets and its applications. Below are the common stainless steel finishes and its applications:
- #4 Finish - polished with 180-240 mesh abrasive and has fine abrasion conditions. This type of finish is ideal for the kitchen, bakery and other food equipment.
- #8 Finish – this type has a mirror like reflective finish which is mainly used for decorative and architectural works. Industries with high hygienic demands make use of this product as well as medical laboratories and implements.
- HL Finish - this type has “continuous abrasive pattern acquired through 180 abrasive polishing and appropriate grain density”.