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Solder Alloy 123 vs. SAE-AISI M1 Steel

Solder alloy 123 belongs to the otherwise unclassified metals classification, while SAE-AISI M1 steel belongs to the iron alloys. There are 21 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 SAE-AISI M1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
200
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 6.2
77
Tensile Strength: Ultimate (UTS), MPa 28
730 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 26
270
Melting Completion (Liquidus), °C 310
1560
Melting Onset (Solidus), °C 300
1510
Specific Heat Capacity, J/kg-K 130
450
Thermal Conductivity, W/m-K 23
29
Thermal Expansion, µm/m-K 29
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
18
Density, g/cm3 11
8.1
Embodied Carbon, kg CO2/kg material 4.5
7.0
Embodied Energy, MJ/kg 74
99
Embodied Water, L/kg 500
98

Common Calculations

Stiffness to Weight: Axial, points 0.9
14
Stiffness to Weight: Bending, points 7.8
24
Strength to Weight: Axial, points 0.69
25 to 73
Strength to Weight: Bending, points 1.8
22 to 45
Thermal Diffusivity, mm2/s 16
8.0
Thermal Shock Resistance, points 3.8
23 to 66

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.78 to 0.88
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 0 to 0.080
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
81 to 84.8
Lead (Pb), % 93.5 to 95.5
0
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 4.5 to 5.5
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.4
Zinc (Zn), % 0 to 0.0010
0