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Solder Alloy 123 vs. Automotive Grey Cast Iron

Solder alloy 123 belongs to the otherwise unclassified metals classification, while automotive grey cast iron belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is solder alloy 123 and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 8.0
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 18
180
Elongation at Break, % 45
9.6 to 14
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 6.2
69 to 70
Tensile Strength: Ultimate (UTS), MPa 28
140 to 290

Thermal Properties

Latent Heat of Fusion, J/g 26
260 to 280
Melting Completion (Liquidus), °C 310
1380 to 1390
Melting Onset (Solidus), °C 300
1340 to 1350
Specific Heat Capacity, J/kg-K 130
490
Thermal Conductivity, W/m-K 23
41 to 43
Thermal Expansion, µm/m-K 29
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 75
1.9 to 3.0
Density, g/cm3 11
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 4.5
1.5 to 1.7
Embodied Energy, MJ/kg 74
21 to 24
Embodied Water, L/kg 500
44 to 51

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
5.2 to 11
Strength to Weight: Bending, points 1.8
8.0 to 13
Thermal Diffusivity, mm2/s 16
11 to 12
Thermal Shock Resistance, points 3.8
4.2 to 8.6