{"id":29214,"date":"2021-02-21T17:15:27","date_gmt":"2021-02-21T17:15:27","guid":{"rendered":"http:\/\/sitepourvtc.com\/?page_id=29214"},"modified":"2023-08-18T06:37:01","modified_gmt":"2023-08-18T06:37:01","slug":"stainless-steel","status":"publish","type":"page","link":"https:\/\/sitepourvtc.com\/nuclear-engineering\/metals-what-are-metals\/stainless-steel\/","title":{"rendered":"Stainless Steel"},"content":{"rendered":"
<\/a>In metallurgy, stainless steel<\/strong> is a steel alloy with at least 10.5% chromium with or without other alloying elements and a maximum of 1.2% carbon by mass. Stainless steels, also known as inox steels or inox from French inoxydable (inoxidizable), are steel alloys<\/a>, which are very well known for their corrosion resistance<\/strong>, which increases with increasing chromium content. Corrosion resistance may also be enhanced by nickel and molybdenum additions. The resistance of these metallic alloys to the chemical effects of corrosive agents is based on passivation<\/strong>. For passivation to occur and remain stable, the Fe-Cr alloy<\/strong> must have a minimum chromium content of about 10.5% by weight<\/strong>, above which passivity can occur and below is impossible. Chromium can be used as a hardening element and is frequently used with a toughening element such as nickel to produce superior mechanical properties.<\/p>\n The strength and corrosion resistance of stainless steel<\/strong> often make it the material of choice in transportation and processing equipment, engine parts, and firearms. Most structural applications occur in the chemical and power engineering industries, which account for more than a third of the market for stainless steel products. The wide variety of applications includes nuclear reactor vessels<\/a>\u00a0and heat exchangers<\/a>. The body of the reactor vessel is constructed of high-quality low-alloy carbon steel<\/strong>. Still, all surfaces that come into contact with reactor coolant (highly corrosive due to boric acid) are clad<\/strong> with a minimum of about 3 to 10 mm of austenitic stainless steel<\/strong> to minimize corrosion.<\/p>\nUses of Stainless Steels – Applications<\/h2>\n