Austenitic 200 Series - combined with the 300 series, the alloy contains 70% of stainless steel. Carbon, chromium, nickel and / or manganese, the steel can be hardened by cold working, but the corrosion resistance is weak.[url=http://www.jawaygroup.com/stainless-steel/quality-stainless-steel-ball-quality-focus.html]Quality stainless steel ball quality focus[/url]Austenite, 300 series - the most widely used austenitic stainless steel is grade 304, also known as A2 stainless steel or 18/8 its 18% chromium and nickel content of 8%. 316, the second most common grade, in line with the ocean level, can usually be found in high quality cooking utensils and cutlery.[url=http://www.eastasiametal.com/]eastasiametal[/url]Ferritic-austenitic alloys This stainless steel plate has excellent engineering properties, but reduces corrosion. Lower chromium and nickel content, and occasionally containing lead, making it less expensive. Some can be reinforced with aluminum or titanium.[url=http://www.jawaygroup.com/stainless-steel/quality-stainless-steel-ball-quality-focus.html]Quality stainless steel ball quality focus[/url]Martensite - does not corrode austenitic or ferritic stainless steel plate, resistant to martensite to compensate for the extreme strength and machinability of the drawbacks. It contains chromium, molybdenum, nickel and carbon.Duplex - about 50/50 mixed austenite and ferrite, duplex stainless steel has an overall low alloy content comparable to the austenitic grade, which makes it popular for many applications due to its economical price point. It is also twice the austenitic stainless steel and contains high chromium and low nickel proportions to make it more resistant to corrosion, cracking and pitting.