CarTech 303 is a free-machining austenitic stainless steel. The addition of sulfur to this 18-8 chromium-nickel austenitic stainless steel, which is ordinarily tough and difficult to machine, enhances the alloy’s machinability to the degree that it can be readily utilized for producing parts on automatic screw machines at about 70% of the speed of SAE 1212. This sulfur modification has led to widespread acceptance and use of this grade in the screw machine industry. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1337. Producer or source: Carpenter Technology Corporation.

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