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Solder Alloy 123 vs. Austempered Cast Iron

Solder alloy 123 belongs to the otherwise unclassified metals classification, while austempered cast iron belongs to the iron alloys. There are 23 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 123 and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 8.0
270 to 490
Elastic (Young's, Tensile) Modulus, GPa 18
180
Elongation at Break, % 45
1.1 to 13
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 6.2
62 to 69
Tensile Strength: Ultimate (UTS), MPa 28
860 to 1800

Thermal Properties

Latent Heat of Fusion, J/g 26
280
Melting Completion (Liquidus), °C 310
1380
Melting Onset (Solidus), °C 300
1340
Specific Heat Capacity, J/kg-K 130
490
Thermal Conductivity, W/m-K 23
42
Thermal Expansion, µm/m-K 29
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.9
Density, g/cm3 11
7.5
Embodied Carbon, kg CO2/kg material 4.5
1.8
Embodied Energy, MJ/kg 74
25
Embodied Water, L/kg 500
48

Common Calculations

Stiffness to Weight: Axial, points 0.9
13
Stiffness to Weight: Bending, points 7.8
25
Strength to Weight: Axial, points 0.69
32 to 66
Strength to Weight: Bending, points 1.8
27 to 44
Thermal Diffusivity, mm2/s 16
11
Thermal Shock Resistance, points 3.8
25 to 53

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.050
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0 to 0.020
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
3.4 to 3.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.080
0 to 0.8
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
89.6 to 94
Lead (Pb), % 93.5 to 95.5
0
Magnesium (Mg), % 0
0 to 0.040
Manganese (Mn), % 0
0.3 to 0.4
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0 to 0.010
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0
2.3 to 2.7
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 4.5 to 5.5
0 to 0.020
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.0010
0