Dec 23 2017· Grades of Stainless Steel Castings in China 304 Stainless Steel also known as CF8 or UNS J92600 is the most widely specified grade of stainless steel casting It is austenitic stainless steel with 18 chromium and 8 nickel Type 304 stainless steel castings can be used in non-corrosive environments or corrosive environments at temperatures