Free Machining AISI 303Se Cold Drawn Stainless Steel Round Bar Ground Finish

Selenium-bearing, free machining 18-8 chromium-nickel steel.

Machinability similar to Type 303 but with improved formability.

Should also be considered for applications which involve cold-forming operations.

Alloy 303Se alloy is a free-machining stainless steel specifically designed to exhibit improved

machinability. It is a non-magnetic austenitic stainless steel which is not hardenable by heat treatment.

Selenium replaces sulfur to produce the free-machining characteristics and has somewhat improved

formability over 303. The good mechanical and corrosion-resistant properties of the lower­-sulfur grade

are retained to the extent possible.

303Se should be considered for use in applications such as shafts, valve bodies, valves, valve trim,

and fittings. This steel possesses non-galling properties that make disassembly of parts easy­ and

help to avoid scratching or galling in moving parts.

Specifications: AMS 5640, AMS 5641, AMS 5738, ASTM A582, MIL-W-52263, QQ-S-764

Chemical composition ( weight % )

For Details, please Contact

Wuxi Guanglu Special Steel Co., Ltd. – your productivity partner for stainless long products.

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