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Solder Alloy 142 vs. SAE-AISI O7 Steel

Solder alloy 142 belongs to the otherwise unclassified metals classification, while SAE-AISI O7 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is solder alloy 142 and the bottom bar is SAE-AISI O7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 33
190
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 12
73
Tensile Strength: Ultimate (UTS), MPa 43
680 to 2110

Thermal Properties

Latent Heat of Fusion, J/g 42
250
Melting Completion (Liquidus), °C 210
1480
Melting Onset (Solidus), °C 180
1430
Specific Heat Capacity, J/kg-K 170
470
Thermal Conductivity, W/m-K 45
41
Thermal Expansion, µm/m-K 25
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.7

Otherwise Unclassified Properties

Density, g/cm3 9.3
7.9
Embodied Carbon, kg CO2/kg material 9.4
2.3
Embodied Energy, MJ/kg 160
33
Embodied Water, L/kg 890
52

Common Calculations

Stiffness to Weight: Axial, points 2.0
13
Stiffness to Weight: Bending, points 11
24
Strength to Weight: Axial, points 1.3
24 to 74
Strength to Weight: Bending, points 2.9
22 to 46
Thermal Diffusivity, mm2/s 28
11
Thermal Shock Resistance, points 3.7
23 to 70

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.5 to 3.5
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
1.1 to 1.3
Chromium (Cr), % 0
0.35 to 0.85
Copper (Cu), % 0 to 0.080
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
92.9 to 97.6
Lead (Pb), % 47.4 to 50
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.6
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 47.5 to 48.5
0
Tungsten (W), % 0
1.0 to 2.0
Vanadium (V), % 0
0 to 0.4
Zinc (Zn), % 0 to 0.0010
0