303SE Stainless Steel

303SE is an austenitic stainless steel melted as AOD melt type and offers excellent machinability.  This grade is a modified version of 303 with a selenium addition in place of sulfur which allows for excellent machinability.  This grade is used often in general industry where cold forming is required after machining and can be used for higher temperature fastener, nozzle, and valve parts.

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Specs USAP Produces to:
  • AMS 5640
  • AMS 5641
  • ASTM A320 (B8F/303SE)
  • ASTM A582
  • Federal QQ-S-763
  • Federal QQ-S-764
  • MIL-S-7720

Don't see the spec you're looking for? Not all specs are listed so please submit an inquiry!

Product Forms Sold:

Size ranges vary by specification and specific order requirements; inquire for your specific needs.


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Industry / Trade Names
  • UNS S30323
  • B8F
  • Other Industrial Markets
Melt Types
  • AOD
Grade Families
  • Austenitic
  • Stainless Steel

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