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CR024A Copper vs. Solder Alloy 703

CR024A copper belongs to the copper alloys classification, while solder alloy 703 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is CR024A copper and the bottom bar is solder alloy 703.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
51
Elongation at Break, % 15
35
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 43
19
Tensile Strength: Ultimate (UTS), MPa 230
57

Thermal Properties

Latent Heat of Fusion, J/g 210
61
Melting Completion (Liquidus), °C 1090
220
Melting Onset (Solidus), °C 1040
220
Specific Heat Capacity, J/kg-K 390
220
Thermal Conductivity, W/m-K 370
55
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
14
Electrical Conductivity: Equal Weight (Specific), % IACS 100
17

Otherwise Unclassified Properties

Density, g/cm3 9.0
7.4
Embodied Carbon, kg CO2/kg material 2.6
18
Embodied Energy, MJ/kg 41
300

Common Calculations

Stiffness to Weight: Axial, points 7.2
3.8
Stiffness to Weight: Bending, points 18
17
Strength to Weight: Axial, points 7.1
2.1
Strength to Weight: Bending, points 9.3
4.4
Thermal Diffusivity, mm2/s 110
33
Thermal Shock Resistance, points 8.1
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 99.9 to 99.985
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0.015 to 0.040
0
Silver (Ag), % 0 to 0.015
3.3 to 3.7
Tin (Sn), % 0
95.8 to 96.7
Zinc (Zn), % 0
0 to 0.0010