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Monel R405 Round Bar | Monel R405 Hex Bar

Shapes Available

  • Coil
  • Hex Bar
  • Round Bar
  • Sheet


  • Marine
  • Nuclear
  • Oil Refining

Industry Names

  • Monel R-405
  • Alloy 405
  • Nickel 405


  • Exotic
  • Specialty Steel


  • ASTM B127 QQ-N-281 (Sheet)
  • ASTM B164 QQ-N-281 (Bar)
  • UNS N04405


  • Fasteners
  • Meter & Valve Parts
  • Screw Machine Products


  • Excellent Resistance to Neutral and Alkaline Salt
  • Excellent Resistance to Stress Corrosion Cracking in Most Freshwaters
  • Good Mechinability and is Recommended for Use with Automatic Screw Machines
  • Resistance to Chloride Induced Stress Corrosion Cracking
  • Resistant to Seawater and Steam at High Temperatures

Monel R-405 is the free machining grade of Monel or Alloy 400. Due to its higher Sulfur content it enhances machinability. The physical properties are almost the exact same but has slightly different range of mechanical properties. Used primarily for screw machine stock Monel R405 is not recommended for many other applications.

Monel R-405 is available in round bar, sheet, hex bar and coil.

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
Melting Range 2500-2590 °F
.2% Yield Strength 25-40 ksi
Density .285 lb/inch³
Elongation 50-35 %
Ultimate Tensile Strength 70-85 ksi
Chemical Composition
C- .3
Cu28.0 34.0
Fe- 2.5
Mn- 2.0
S.025 .06
Si- .5

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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