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ACI-ASTM CF20 Steel vs. Solder Alloy 123

ACI-ASTM CF20 steel belongs to the iron alloys classification, while solder alloy 123 belongs to the otherwise unclassified metals. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF20 steel and the bottom bar is solder alloy 123.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
8.0
Elastic (Young's, Tensile) Modulus, GPa 200
18
Elongation at Break, % 50
45
Poisson's Ratio 0.28
0.44
Shear Modulus, GPa 77
6.2
Tensile Strength: Ultimate (UTS), MPa 530
28

Thermal Properties

Latent Heat of Fusion, J/g 300
26
Melting Completion (Liquidus), °C 1420
310
Melting Onset (Solidus), °C 1410
300
Specific Heat Capacity, J/kg-K 480
130
Thermal Conductivity, W/m-K 16
23
Thermal Expansion, µm/m-K 17
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 16
75
Density, g/cm3 7.8
11
Embodied Carbon, kg CO2/kg material 3.1
4.5
Embodied Energy, MJ/kg 44
74
Embodied Water, L/kg 150
500

Common Calculations

Stiffness to Weight: Axial, points 14
0.9
Stiffness to Weight: Bending, points 25
7.8
Strength to Weight: Axial, points 19
0.69
Strength to Weight: Bending, points 19
1.8
Thermal Diffusivity, mm2/s 4.3
16
Thermal Shock Resistance, points 11
3.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 64.2 to 74
0 to 0.020
Lead (Pb), % 0
93.5 to 95.5
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 8.0 to 11
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0
0 to 0.0010