BERYLLIUM/COPPER ALLOYS

Typical Analysis in Percent:

Copper Alloy

UNS Number     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:

                                                                Elastic                  Thermal Expansion                 Thermal                     Melting 

Copper Alloy             Density              Modulus              Coefficient                         Conductivity               Temperature

UNS Number            lb/in³                  10⁶ psi               in/in/^oF, 70 ^oF to 400 ^oF            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.