440-C Vac Melt Annealed - Stainless Steel - Fry Steel

Stainless Steel / 440-C VAC MELT ANN

440C Vacuum Melt is a high carbon martensitic stainless steel processed by Vacuum Induction Melting (VIM) to reduce impurities for very demanding applications. Premium aircraft-quality material typically used for anti-friction bearing components requiring resistance to both corrosion and wear and having hardness not lower than 58 HRC. This high purity magnetic alloy is often used for ball bearings, bushings, valve parts, dental and surgical tools.

Chemical Makeup of 440 C Stainless Steel

Element Min Max
Carbon, C 0.95 1.2
Manganese, Mn - 1
Silicon, Si - 1
Sulfur, S - 0.03
Phosphorus, P 0.04
Chromium, Cr 16 18
Nickel, Ni - 0.75
Molybdenum, Mo 0.4 0.65
Copper, Cu - 0.5

Common Applications of 440 C Stainless Steel

  • Aerospace Aerospace
  • Medical Medical
  • Industrial Industrial


  • Great Hardness
  • Good Wear Resistance
  • Good Machinability

We stock 440-C VAC MELT ANN to the following specifications:

  • AMS-5618
  • AMS-5630
  • AMS-QQ-S-763
  • ASTM-A-276
  • BEMS-25003E (CHECK CERT)
  • QQS-763
  • RBO-160-064 EXC. SONIC
  • ASTM F-899

Click on a cross-section to see the sizes we stock:

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