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440C Stainless Steel Round Bar | 440C Sheet

Shapes Available

  • Plate
  • Round Bar
  • Sheet


  • Manufacturing
  • Medical
  • Natural Gas
  • Oil Refining

Industry Names

  • 440C Stainless Steel
  • 440C Stainless


  • Stainless Steel


  • AMS 5618
  • AMS 5630
  • ASTM A276
  • UNS S44004


  • Aircraft Structural Parts
  • Bearings
  • Medical Instruments
  • Molds
  • Turbine Components


  • Corrosion Resistance
  • High Hardness
  • High Strength

440C Stainless Steel is a high carbon chromium steel. In addition, 440C is martensitic. This grade is meant to provide maximum hardness and wear resistance with stainless properties. 440C can be hardened to 60 HRC which is the highest hardness of any other stainless steel. 440C is typically used in bearing assemblies, cutlery, pump parts and textile machinery. 440C after heat treating is the capable of attaining the highest strength.

440C is available for order in round bar and mill quantities of sheet. 440C is also available in vac melt per AMS 5618.

Please contact us to request a quote. We specialize in hard to find material.

We work closely with many manufacturers in the aerospace & defense industry. We work with NADCAP approved heat treaters and testing laboratories. We can supply DFARS compliant material.

Metal Properties
.2% Yield Strength 65 ksi
Elongation 14 %
Ultimate Tensile Strength 110 ksi
Chemical Composition
C.95 1.20
Cr16.0 18.0
Fe- Bal
Mn- 1.00
Mo- .75
P- .04
S- .03
Si- 1.00

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. Michlin Metals 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. Tradenames listed are the sole property of the tradename owners. Michlin Metals typically provides branded products through its relationships with mills and authorized re-sellers. Equivalent non-branded product is sometimes also available through certified sources of such products. Michlin Metals will never substitute non-branded product when branded product is requested.

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