Beryllium-Copper

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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.