Grade 440A Stainless Steel

440A is a high carbon martensitic stainless steel that is AOD melted.  This alloy can be heat treated to extremely high hardnesses. It has slightly less carbon than 440B and 440C giving it better machinability but less hardness.  The combination of good wear resistance and high hardness makes this alloy an excellent candidate for cutting tools and knife blades.  It also is often used for dental and surgical equipment.

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Specs USAP Produces to:
  • AMS 5631
  • AMS-QQ-S763
  • ASTM A276
  • ASTM F899
  • Federal QQ-S-763

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Product Forms Sold:

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

Approvals
  • GE S35 & S-Spec-1

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Industry / Trade Names
  • UNS S44002
Markets
  • Aerospace
  • Other Industrial Markets
Melt Types
  • AOD
Grade Families
  • Martensitic
  • Stainless Steel

DISCLAIMER: The information provided on this Web site, technical or otherwise, is merely for informational purposes, and is not intended to serve as a guide, manual, instructions, or any kind reference for proper safety procedures or material purchasing. Universal Stainless makes no warranty, express or implied, based on the statements on this Web site and, as such, will not be liable for any damages, either direct or indirect, including but not limited to consequential damages, such as damages for loss of profits, that may arise based on reliance on the information provided on this Web site. Some information has been referenced from reliable industry sources.