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Cast copper alloy C82700 (Beryllium Copper)

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Cast copper alloy C82700 (Beryllium Copper)
Chemical composition: Be=2.45%, Ni=1.25%, Cu = 96.3%
Property Value in metric unit Value in US unit
Density 8.08 *10³ kg/m³ 504 lb/ft³
Modulus of elasticity 132 GPa 19100 ksi
Thermal expansion (20 ºC) 16.9*10-6 ºCˉ¹ 9.4*10-6 in/(in* ºF)
Specific heat capacity 419 J/(kg*K) 0.10 BTU/(lb*ºF)
Thermal conductivity 129.8 W/(m*K) 900 BTU*in/(hr*ft²*ºF)
Electric resistivity 8.7*10-8 Ohm*m 8.7*10-6 Ohm*cm
Tensile strength
( sand cast, solution treated and aged)
1069 MPa 155000 psi
Yield strength
(sand cast, solution treated and aged)
896 MPa 130000 psi
Elongation
(sand cast, solution treated and aged)
2 % 2 %
Hardness
(sand cast, solution treated and aged)
39 RC 39 RC
Solution temperature 790 ºC 1454 ºF
Aging temperature 325 ºC 617 ºF
Aging time 1-2 hrs. 1-2 hrs.
Liquidus temperature 954 ºC 1750 ºF
Solidus temperature 857 ºC 1575 ºF

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cast_copper_alloy_c82700_beryllium_copper.txt · Last modified: 2023/12/14 by dmitri_kopeliovich
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