![]() The most common extra element is molybdenum, which greatly improves corrosion resistance. They contain 17 to 25% chromium and 8 to 20% nickel, and may contain other elements to achieve the desired properties. Austenitic Grades of Stainless SteelĪustenitic stainless steels are easy to work and weld, and have excellent ductility, toughness and corrosion resistance with good strength. Each group has different dominant characteristics, and there are several grades within each group. The stainless steels can be divided into five groups – austenitic, ferritic, duplex, martensitic and precipitation hardening. Although straightforward for most applications, choosing the optimum grade of stainless steel can sometimes be complex, and Austral Wright Metals engineers and metallurgists will be pleased to provide assistance. There are many different stainless steels, with different amounts of alloying elements added to give the best balance of corrosion resistance, mechanical properties and cost. It is this passive layer that gives stainless steel its corrosion resistance. If it is damaged, the film usually heals spontaneously. ![]() This film is called the passive layer and forms rapidly in ordinary atmospheres. Chromium reacts strongly with oxygen to form a very thin, invisible, stable oxide film on the surface of the stainless steel. Stainless steels are steel alloys that contain more than 10.5% chromium with excellent corrosion resistance. “All Stainless Steels have the same corrosion resistance”.“18/10 Stainless Steel is better than 18/8 Stainless Steel”.Ferritic Marine Grade 445M2 Stainless Steel.General Purpose Ferritic Grade AWM404GP® Stainless Steel.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |