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Solder Alloy 104 vs. ACI-ASTM CB7Cu-2 Steel

Solder alloy 104 belongs to the otherwise unclassified metals classification, while ACI-ASTM CB7Cu-2 steel belongs to the iron alloys. There are 23 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 104 and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
190
Elongation at Break, % 46
5.7 to 11
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 13
75
Tensile Strength: Ultimate (UTS), MPa 51
960 to 1350

Thermal Properties

Latent Heat of Fusion, J/g 45
280
Melting Completion (Liquidus), °C 190
1430
Melting Onset (Solidus), °C 180
1380
Specific Heat Capacity, J/kg-K 180
480
Thermal Conductivity, W/m-K 50
17
Thermal Expansion, µm/m-K 25
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.4

Otherwise Unclassified Properties

Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 10
2.6
Embodied Energy, MJ/kg 180
38
Embodied Water, L/kg 900
130

Common Calculations

Stiffness to Weight: Axial, points 2.3
14
Stiffness to Weight: Bending, points 12
25
Strength to Weight: Axial, points 1.6
34 to 48
Strength to Weight: Bending, points 3.4
28 to 35
Thermal Diffusivity, mm2/s 30
4.6
Thermal Shock Resistance, points 4.0
32 to 45

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
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 0 to 0.080
2.5 to 3.2
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
73.6 to 79
Lead (Pb), % 39 to 40.5
0
Manganese (Mn), % 0
0 to 0.7
Nickel (Ni), % 0 to 0.010
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 59.5 to 60.5
0
Zinc (Zn), % 0 to 0.0010
0