Once you have decided that your DIY project will require some stainless steel sheets, you have three decisions before you select what you need. The two foremost factors in choosing to use stainless steel sheets are their resistance to corrosion and staining. Technically this is not the case. It most certainly can corrode and stain. However, its strong resistance to corrosion and staining will generally suffice under most commercial and residential applications. The other misconception concerns what most people call a “sheet.” In the metals industry, the rule of thumb is that anything over 3mm thick is no longer called a sheet but is referred to as a plate. So, if your application calls for anything over 3mm thick, you are looking for a stainless steel “plate,” not an ss “sheet.”
- Grades: The two most typically used grades are 316 and 304. Now, 316 is preferred above 304 if your application is in a corrosive environment like salt water. Although both 304 and 316 suffer pitting and crevice corrosion, the 316 grade is notably less. Grade 316 is considered a “food grade” used where food products are being handled. If you were looking to use a piece of stainless steel sheet as a splashback, however, you could save some money and use grade 304 because it would not be coming into contact with the food preparation.
- Thickness: The thickness of a sheet is most commonly between 0.4mm and 2.5mm. Anything thinner than 0.4 would usually be referred to as foil, and more than 3mm thick would mean a plate. Stock standard dimensions of a 0.4mm up to 0.9mm thick sheet would be either 2000mm X 1000mm or 2500mm x 1250mm. Between 0.4mm and 2.5mm, you would also usually be able to find a 3000mm X 1500mm available. Having selected the right thickness and grade for your project, you can now have your stainless-steel sheet custom cut by the best ss coil manufacturers in India. Using a guillotine, laser cutter, or waterjet cutting machine, you can cut some very complex shapes with precision and accuracy.
- Finish: Depending on your application, you can settle on what finish you would like the sheet to have. The manufacturing process of these sheets by the stainless steel manufacturers in India- like Ashwin Impex; involves them being rolled to the correct size and thickness, then annealed and pickled, and lastly passivated by putting the sheet one last time between some highly polished rollers. This prepares it to accept one of many available finishes and surface patterns. The most popular finish is the brushed finish. This finish consists of many fine lines or scratches running in the same direction. The Satin finish is produced by softly brush-scratching the sheet until a dull sheen is produced. Lastly, the mirror finish, as the name implies creates a highly polished and reflective effect.
To protect the surface of your stainless-steel sheet, a plastic coating is applied to either one or both sides of the sheet as it passes through the plastic coating machine rollers. Whether you need a full-size stainless-steel sheet or a custom cut for your business or home, you are better prepared to know what you’re looking for and make an informed decision when ordering. Ashwin Impex is one of the leading steel plate manufacturers in India and beyond. We will gladly custom-cut your sheet to suit your requirements. Various types of stainless steel are available in the market, of which 303, 304, and 316 are widely used in several industries. Each stainless-steel type varies in its applications, as mentioned above.