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Master Bond adhesives
Beryllium Copper 21C UNS C82510 Casting Alloy Solution Treated and Aged
Categories: Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy

Material Notes: The 1% Co content is a good grain refiner, and as a result, this alloy is used instead of beryllium-copper alloys C82500 and C23400 when thin sections must be cast at high temperatures or when thick and thin sections are present within the same casting in order to achieve a uniform fine-grained structure. The higher cobalt content imparts better wear resistance but less desirable polishability and machinability. Typical uses are comparable to those of beryllium-copper alloys C82500 and C23400.

Test specimen: solution treated at 790 to 800°C and aged 3 hours at 345°C.

Vendors:
Available Properties
  • Density
  • Hardness, Rockwell C
  • Tensile Strength, Ultimate
  • Tensile Strength, Yield
  • Elongation at Break, in 50 mm
  • Modulus of Elasticity
  • Poissons Ratio
  • Machinability, UNS C36000 (free-cutting brass) = 100%
  • Shear Modulus
  • Electrical Resistivity, 20% IACS, as-cast tempers
  • Magnetic Permeability
  • CTE, linear
  • Specific Heat Capacity
  • Thermal Conductivity
  • Melting Point, Incipient
  • Melting Point
  • Solidus
  • Liquidus
  • Solution Temperature
  • Aging Temperature
  • Casting Temperature, Heavy castings
  • Casting Temperature, Light castings
  • Aluminum, Al
  • Beryllium, Be
  • Chromium, Cr
  • Cobalt, Co
  • Copper, Cu
  • Iron, Fe
  • Lead, Pb
  • Nickel, Ni
  • Silicon, Si
  • Tin, Sn
  • Zinc, Zn
  
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