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Solder Alloy 124 vs. ACI-ASTM CF20 Steel

Solder alloy 124 belongs to the otherwise unclassified metals classification, while ACI-ASTM CF20 steel belongs to the iron alloys. There are 24 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 124 and the bottom bar is ACI-ASTM CF20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
200
Elongation at Break, % 46
50
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 5.8
77
Tensile Strength: Ultimate (UTS), MPa 27
530

Thermal Properties

Latent Heat of Fusion, J/g 24
300
Melting Completion (Liquidus), °C 330
1420
Melting Onset (Solidus), °C 320
1410
Specific Heat Capacity, J/kg-K 130
480
Thermal Conductivity, W/m-K 22
16
Thermal Expansion, µm/m-K 29
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 70
16
Density, g/cm3 11
7.8
Embodied Carbon, kg CO2/kg material 4.1
3.1
Embodied Energy, MJ/kg 68
44
Embodied Water, L/kg 470
150

Common Calculations

Stiffness to Weight: Axial, points 0.83
14
Stiffness to Weight: Bending, points 7.6
25
Strength to Weight: Axial, points 0.65
19
Strength to Weight: Bending, points 1.8
19
Thermal Diffusivity, mm2/s 15
4.3
Thermal Shock Resistance, points 3.9
11

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.12
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 to 0.2
Chromium (Cr), % 0
18 to 21
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
64.2 to 74
Lead (Pb), % 97.2 to 98.2
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.010
8.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 1.8 to 2.2
0
Zinc (Zn), % 0 to 0.0010
0