Beryllium-Copper
Typical Analysis in Percentage:
Copper Alloy
UNS # Be Co Ni Co+Ni Co+Ni+Fe Pb Cu
C17200 1.80-2.00 --- --- 0.20 min 0.6 max 0.02 max Balance
C17300 1.80-2.00 --- --- 0.20 min 0.6 max 0.20-0.6 Balance
C17000 1.60-1.79 --- --- 0.20 min 0.6 max --- Balance
C17510 0.2-0.6 --- 1.4-2.2 --- --- --- Balance
C17500 0.4-0.7 2.4-2.7 --- --- --- --- Balance
C17410 0.15-0.50 0.35-0.60 --- --- --- --- Balance
Note: Copper plus additions equal 99.5% minimum.
Typical Physical Properties:
Copper Alloy
Elastic Thermal Expansion Thermal Melting
Density Modulus Coefficient Conductivity Temperature
UNS # lb/in3 106 psi in/in/oF, 70oF to 400oF Btu/(ft⋅hr⋅oF) oF
C17200 0.302 19 9.7 x 10-6 60 1600-1800
C17300 0.302 19 9.7 x 10-6 60 1600-1800
C17000 0.304 19 9.7 x 10-6 60 1600-1800
C17510 0.319 20 9.8 x 10-6 140 1900-1980
C17500 0.319 20 9.8 x 10-6 115 1850-1930
C17410 0.318 20 9.8 x 10-6 135 1880-1960
Note: Tabulated properties apply to age hardened products. Before age hardening the density is 0.298 lb/in3 for Alloys C17200, C17300 and C17000; 0.316 lb/in3 for Alloys
C17510 and C17500. Poisson’s ratio is 0.3 for all Alloys.