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PRODUCT DATA of CDA 770
MaterialCDA 770
General InformationTypical data from standards handbook of copper and copper alloys (CDA inc) @ Room Temperature
Chemical CompositionCu-18.5Ni-27%Zn
EXPERIENCE IN PRACTICE
Equivalent DesignationsC77000; CuN18Zn27; CW410J; 2.0742; NS107; CDA770; nickel-silver 55-18
PHYSICAL PROPERTIES
Specific Gravity8.7
ELASTIC PROPERTIES
Tensile Modulus125 GPa
Shear Modulus41.7 GPa
ELECTRICAL PROPERTIES
Electrical Volume Resistivity3.14e-7 ohm.m
THERMAL PROPERTIES
Thermal Conductivity29.3 W/m.K
Thermal Expansion Coefficient16.7 ┬Ástrain/┬░C
Specific Heat0.377 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
Stress Corrosion StatusLow Resistance to SCC: Table 3
Remark: in the annealed, 38% or 50% cold rolled condition only
Remark: Requires Stress corrosion evaluation form
Remark: acc. to ECSS-Q-ST-70-36C
Data Quality: Design Data