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Solder Alloy 104 vs. CR025A Copper

Solder alloy 104 belongs to the otherwise unclassified metals classification, while CR025A copper belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is solder alloy 104 and the bottom bar is CR025A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
120
Elongation at Break, % 46
15
Poisson's Ratio 0.39
0.34
Shear Modulus, GPa 13
43
Tensile Strength: Ultimate (UTS), MPa 51
230

Thermal Properties

Latent Heat of Fusion, J/g 45
210
Melting Completion (Liquidus), °C 190
1090
Melting Onset (Solidus), °C 180
1040
Specific Heat Capacity, J/kg-K 180
390
Thermal Conductivity, W/m-K 50
370
Thermal Expansion, µm/m-K 25
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
99
Electrical Conductivity: Equal Weight (Specific), % IACS 11
99

Otherwise Unclassified Properties

Density, g/cm3 8.9
9.0
Embodied Carbon, kg CO2/kg material 10
2.6
Embodied Energy, MJ/kg 180
41
Embodied Water, L/kg 900
320

Common Calculations

Stiffness to Weight: Axial, points 2.3
7.2
Stiffness to Weight: Bending, points 12
18
Strength to Weight: Axial, points 1.6
7.1
Strength to Weight: Bending, points 3.4
9.3
Thermal Diffusivity, mm2/s 30
110
Thermal Shock Resistance, points 4.0
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.050
0 to 0.00050
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
99.9 to 99.96
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 39 to 40.5
0 to 0.0050
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0.040 to 0.060
Silver (Ag), % 0 to 0.1
0 to 0.015
Tin (Sn), % 59.5 to 60.5
0
Zinc (Zn), % 0 to 0.0010
0