In metallurgy, stainless steel , also known as inox steel or inox from French inoxydable (inoxidizable), is a steel alloy, with highest percentage contents of iron, chromium, and nickel, with a minimum of 10.5% chromium content by mass and a maximum of 1.2% carbon by mass.. Stainless steels are most notable for their corrosion resistance, which increases with increasing chromium content. 66 rows The SAE steel grades system is a standard alloy numbering systems for steel grades … Grade Data Sheet 301 301L 301LN Revised May 2008 Page 1 of 2 here.au Grade 301 is a high work-hardening rate austenitic stainless steel . …

Stainless steel is a material with tons to offer. Its popularity also means there are seemingly a million different types of stainless steel grades . (Actually, there are a few hundred.) Stainless steel must contain at least 10.5 percent chromium. Depending on the grade , it may contain much higher chromium levels, and additional alloying ingredients like molybdenum, nickel, titanium, aluminum, copper, nitrogen, phosphorous and selenium. The heremon stainless steel grades are 304 and 316. Most watches that are made of stainless steel are made of this grade . Rolex is an exception in that they use Type 904L. 18/10 stainless often corresponds to this grade . Also referred to as A4 in accordance hereanization for Standardization ISO 3506.