CarTech 303 stainless is a free-machining stainless steel. The addition of sulfur to this 18-8 chrome-nickel 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 C1212. This sulfur modification has led to widespread acceptance and use of this grade in the screw machine industry.

Manufacturers interested in further improvement in machinability to realize potential economic benefits and lower costs associated with higher machining speeds and lower cycle times should consider CarTech 303 Project 70®+ stainless.

Customers have reported that CarTech 303 Project 70®+ stainless offers significantly improved machinability characteristics over the generic 303 stainless. This includes up to 50% and higher machining speeds with improved finishes and longer tool life.

Applications:
CarTech 303 stainless should be considered for use in applications such as shafts, valve bodies, valves, valve trim, and fittings. This steel possesses nongalling properties that make disassembly of parts easy-and help to avoid scratching or galling in moving parts. It is not recommended for vessels containing gases or liquids under high pressures.