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Solder Alloy 103 vs. SAE-AISI 1040 Steel

Solder alloy 103 belongs to the otherwise unclassified metals classification, while SAE-AISI 1040 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 103 and the bottom bar is SAE-AISI 1040 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
190
Elongation at Break, % 47
13 to 20
Poisson's Ratio 0.39
0.29
Shear Modulus, GPa 13
73
Tensile Strength: Ultimate (UTS), MPa 52
570 to 640

Thermal Properties

Latent Heat of Fusion, J/g 45
250
Melting Completion (Liquidus), °C 190
1460
Melting Onset (Solidus), °C 180
1420
Specific Heat Capacity, J/kg-K 180
470
Thermal Conductivity, W/m-K 50
51
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.0

Otherwise Unclassified Properties

Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 10
1.4
Embodied Energy, MJ/kg 180
18
Embodied Water, L/kg 910
46

Common Calculations

Stiffness to Weight: Axial, points 2.3
13
Stiffness to Weight: Bending, points 12
24
Strength to Weight: Axial, points 1.6
20 to 23
Strength to Weight: Bending, points 3.5
19 to 21
Thermal Diffusivity, mm2/s 30
14
Thermal Shock Resistance, points 4.3
18 to 20

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), % 0 to 0.0020
0
Carbon (C), % 0
0.37 to 0.44
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
98.6 to 99.03
Lead (Pb), % 38.8 to 40.5
0
Manganese (Mn), % 0
0.6 to 0.9
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.040
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 59.5 to 60.5
0
Zinc (Zn), % 0 to 0.0010
0