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Solder Alloy 715 vs. SAE-AISI A3 Steel

Solder alloy 715 belongs to the otherwise unclassified metals classification, while SAE-AISI A3 steel belongs to the iron alloys. There are 21 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 715 and the bottom bar is SAE-AISI A3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
190
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
73
Tensile Strength: Ultimate (UTS), MPa 30
700 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 61
260
Melting Completion (Liquidus), °C 220
1450
Melting Onset (Solidus), °C 220
1410
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 60
37
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 15
9.7

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 16
4.4
Embodied Energy, MJ/kg 270
67

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 1.1
25 to 77
Strength to Weight: Bending, points 2.9
23 to 48
Thermal Diffusivity, mm2/s 37
10
Thermal Shock Resistance, points 1.9
23 to 70

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
1.2 to 1.3
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0.5 to 0.9
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
88.7 to 92
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.4 to 0.6
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), % 0.8 to 1.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 97.4 to 98.7
0
Vanadium (V), % 0
0.8 to 1.4
Zinc (Zn), % 0 to 0.0010
0