Stainless steel 316 impeller 1.Material is stainless steel CF8M,316. 2.Process:Investment casting. 3.Used in clean water Product ... samples. 1)Material:Stainless steel,Alloy steel,High Nickel andChromium steel,Carbon steel,Special material as customer's requirement;202,303,304,316,ASTM A743, grade ... industry. We wellcome any inquiry you may have for castings. 316 Stainless Steel Impeller Casting