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Solder Alloy 112 vs. SAE-AISI 4720 Steel

Solder alloy 112 belongs to the otherwise unclassified metals classification, while SAE-AISI 4720 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 112 and the bottom bar is SAE-AISI 4720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 33
190
Elongation at Break, % 35
25
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 12
73
Tensile Strength: Ultimate (UTS), MPa 41
490

Thermal Properties

Latent Heat of Fusion, J/g 41
250
Melting Completion (Liquidus), °C 220
1460
Melting Onset (Solidus), °C 180
1420
Specific Heat Capacity, J/kg-K 180
470
Thermal Conductivity, W/m-K 49
39
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.4

Otherwise Unclassified Properties

Density, g/cm3 9.3
7.9
Embodied Carbon, kg CO2/kg material 9.4
1.6
Embodied Energy, MJ/kg 160
21
Embodied Water, L/kg 830
50

Common Calculations

Stiffness to Weight: Axial, points 2.0
13
Stiffness to Weight: Bending, points 11
24
Strength to Weight: Axial, points 1.2
17
Strength to Weight: Bending, points 2.8
18
Thermal Diffusivity, mm2/s 30
10
Thermal Shock Resistance, points 3.5
14

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
0.17 to 0.22
Chromium (Cr), % 0
0.35 to 0.55
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
96.7 to 97.8
Lead (Pb), % 49 to 50.5
0
Manganese (Mn), % 0
0.5 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0 to 0.010
0.9 to 1.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 49.5 to 50.5
0
Zinc (Zn), % 0 to 0.0010
0