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Solder Alloy 151 vs. SAE-AISI A7 Steel

Solder alloy 151 belongs to the otherwise unclassified metals classification, while SAE-AISI A7 steel belongs to the iron alloys. There are 20 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 151 and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 39
190
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 14
72
Tensile Strength: Ultimate (UTS), MPa 46
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 47
260
Melting Completion (Liquidus), °C 150
1470
Melting Onset (Solidus), °C 150
1430
Specific Heat Capacity, J/kg-K 190
470
Thermal Conductivity, W/m-K 44
37
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 9.2
13
Embodied Energy, MJ/kg 160
200
Embodied Water, L/kg 920
100

Common Calculations

Stiffness to Weight: Axial, points 2.5
13
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.4
29 to 77
Strength to Weight: Bending, points 3.2
25 to 48
Thermal Diffusivity, mm2/s 26
10
Thermal Shock Resistance, points 3.2
27 to 72

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), % 0 to 0.1
0
Cadmium (Cd), % 17.5 to 18.5
0
Carbon (C), % 0
2.0 to 2.9
Chromium (Cr), % 0
5.0 to 5.8
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
81.4 to 87.7
Lead (Pb), % 30.3 to 33
0
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 49.5 to 50.5
0
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2
Zinc (Zn), % 0 to 0.0010
0