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Solder Alloy 715 vs. CR008A Copper

Solder alloy 715 belongs to the otherwise unclassified metals classification, while CR008A copper belongs to the copper alloys. 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 solder alloy 715 and the bottom bar is CR008A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
120
Elongation at Break, % 21
15
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
43
Tensile Strength: Ultimate (UTS), MPa 30
220

Thermal Properties

Latent Heat of Fusion, J/g 61
210
Melting Completion (Liquidus), °C 220
1090
Melting Onset (Solidus), °C 220
1040
Specific Heat Capacity, J/kg-K 220
390
Thermal Conductivity, W/m-K 60
380
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
100
Electrical Conductivity: Equal Weight (Specific), % IACS 15
100

Otherwise Unclassified Properties

Density, g/cm3 7.3
9.0
Embodied Carbon, kg CO2/kg material 16
2.6
Embodied Energy, MJ/kg 270
41

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.2
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 1.1
6.8
Strength to Weight: Bending, points 2.9
9.0
Thermal Diffusivity, mm2/s 37
110
Thermal Shock Resistance, points 1.9
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0 to 0.00050
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0.5 to 0.9
99.95 to 100
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 0 to 0.070
0 to 0.0050
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 0.8 to 1.2
0 to 0.015
Tin (Sn), % 97.4 to 98.7
0
Zinc (Zn), % 0 to 0.0010
0