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Solder Alloy 171 vs. CR007A Copper

Solder alloy 171 belongs to the otherwise unclassified metals classification, while CR007A 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 171 and the bottom bar is CR007A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
120
Elongation at Break, % 45
15
Poisson's Ratio 0.39
0.34
Shear Modulus, GPa 14
43
Tensile Strength: Ultimate (UTS), MPa 48
230

Thermal Properties

Latent Heat of Fusion, J/g 47
210
Melting Completion (Liquidus), °C 180
1090
Melting Onset (Solidus), °C 180
1040
Specific Heat Capacity, J/kg-K 190
390
Thermal Conductivity, W/m-K 50
380
Thermal Expansion, µm/m-K 24
17

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 8.8
9.0
Embodied Carbon, kg CO2/kg material 13
2.6
Embodied Energy, MJ/kg 210
41

Common Calculations

Stiffness to Weight: Axial, points 2.4
7.2
Stiffness to Weight: Bending, points 13
18
Strength to Weight: Axial, points 1.5
7.1
Strength to Weight: Bending, points 3.3
9.3
Thermal Diffusivity, mm2/s 30
110
Thermal Shock Resistance, points 3.7
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
0 to 0.00040
Arsenic (As), % 0 to 0.030
0 to 0.00050
Bismuth (Bi), % 0 to 0.1
0 to 0.00020
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
99.994 to 100
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.0010
Lead (Pb), % 34.7 to 36.7
0 to 0.00050
Nickel (Ni), % 0 to 0.010
0
Selenium (Se), % 0
0 to 0.00020
Silver (Ag), % 1.8 to 2.2
0 to 0.0025
Sulfur (S), % 0
0 to 0.0015
Tellurium (Te), % 0
0 to 0.00020
Tin (Sn), % 61.5 to 62.5
0
Zinc (Zn), % 0 to 0.0010
0