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R405


R405 is a nickel-copper-alloy.  This free-machining grade of 400 has more sulfur, improving its machinability.  While it maintains virtually the same corrosion resistance and physical properties as 400, it's slightly different range of mechanical properties are best recommended for screw manchine stock an no other applications. 


  • R405
    R405

R405 Bar

Standard Inventory Specifications 

  • UNS N04405
  • ASTM B 164
  • QQ-N-281

Common Trade Names

  • MONEL Alloy R-405™ (Special Metals Corporation Group)

Inventory Size Range 

  • Hex Bar : 0.687" - 2.750"

Please contact us for more details.

The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.

For a deeper understanding of the difference between 17-4 PH and 17-7 PH precipitation hardening alloys, request our white paper on the topic.

R405 Chemical Composition

Element Percent By Weight
 
Ni Nickel (Plus Cobalt) 63.0 min.
C Carbon 0.3 maximum
Mn Manganese 2.00 maximum
Fe Iron 2.5 maximum
S Sulfur 0.025 - 0.060
Si Silicon 0.5 maximum
Cu Copper 28.0 - 34.00

Common Applications of R-405 Nickel 

  • Automatic screw machine stock

Physical Properties of R405 Bar

  • Density, g/cm³ - 8.80
  • Density, lb/in³ - 0.318
  • Melting Range °F - 2370-2460
  • Melting Range °C - 1300-1350
  • Modules of Elasticity, 10³ ksi 
    • Tension - 26.0
    • Compression - 26.0
    • Torsion - 9.5
  • Poisson's Ration - 0.32
  • Curie Temperature °F - 70-120
  • Curie Temperature °C - 21-49

Mechanical Properties of R405 Bar

Condition Tensile Strength, ksi Yield Strength (0.2% offset) ksi Elongation % Hardness Brinell Hardness Rockwell B
Annealed 70-85 25-40 50-35 110-140 60-76
Hot Finished 75-90 35-60 40-30 130-170 72-86
Cold Drawn, As Drawn 85-115 50-105   160-245 85-23C

 


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