You have most likely encountered the 18/8, 18/10, and 18/0 grades of stainless steel more than you realize. These steels are used in everything from the pipes that may have brought you the water for your morning coffee to the teaspoon you use to stir it with. Needless to say, these are very valuable grades in the world of manufacturing.
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For a quick overview of the differences between these three grades, we&#;ve outlined what each stainless steel grade consists of chemically, what it&#;s great (and not-so-good) at, and the ways in which Xometry&#;s services can be beneficial to processing stainless steel for your own business.
This kind of stainless steel is a member of the 300 grouping, and its most common and popular grade is 304. Its name basically gives away its composition&#;it&#;s got around 18% chromium and 8% nickel. Also included is roughly 67% iron, and a tiny trace of carbon (about 0.07%). It&#;s also part of the austenitic steel family, meaning they have better corrosion resistance than other families of stainless steel and can&#;t be hardened through heat treatments. That being said, it falters slightly in corrosion resistance when it comes to sitting in or being constantly exposed to saltwater.
This grade has an extra perk in that it&#;s food safe, meaning it can be made into cookware, like pots and pans, utensils and cutlery, and even those sleek stainless steel cooking worktops you find in restaurants. To make this grade, all the ingredients, including the alloying elements, have to be mixed together and then melted in an electric furnace. This part of the process takes around 8&#;12 hours. After that, it has to go through decarburization, which is basically getting rid of any carbon that has been left over, and this is done with argon or oxygen. It&#;s then poured into molds so that it can harden in the needed shape and size.
In cutlery there are various qualities and resistance of stainless steel cutlery, depending on the type of use for which they are manufactured. In cutlery there are several important factors such as finishes, the type of manufacturing process and materials. As consumers, the material is an important issue to consider when buying a cutlery set.
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Cutlery is usually made of 304 and 430 stainless steel. 304 stainless steel is a material resistant to corrosion, wear and non-magnetic, a set of stainless steel cutlery made of this material should not be attracted by a magnet. There are processes - depending on the type of cover - that can cause them to have slight magnetic properties, however, they must adhere with little force and must be easy to detach from a magnet. Depending on the manufacture and the manufacturer, the knife blades may have other processes or types of steel, this is because the blades must have greater resistance to shelling than the rest of cutlery.
There is also the manufacture of cutlery and kitchen accessories in 430 steel, this type of steel has another type of quality and this steel is totally magnetic.Which is LFGB food grade safe quality as well.
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