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Solder Alloy 124 vs. SAE-AISI M6 Steel

Solder alloy 124 belongs to the otherwise unclassified metals classification, while SAE-AISI M6 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is solder alloy 124 and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
200
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 5.8
77
Tensile Strength: Ultimate (UTS), MPa 27
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 24
260
Melting Completion (Liquidus), °C 330
1560
Melting Onset (Solidus), °C 320
1510
Specific Heat Capacity, J/kg-K 130
440
Thermal Conductivity, W/m-K 22
17
Thermal Expansion, µm/m-K 29
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
39
Density, g/cm3 11
8.4
Embodied Carbon, kg CO2/kg material 4.1
8.0
Embodied Energy, MJ/kg 68
120
Embodied Water, L/kg 470
160

Common Calculations

Stiffness to Weight: Axial, points 0.83
13
Stiffness to Weight: Bending, points 7.6
23
Strength to Weight: Axial, points 0.65
28 to 73
Strength to Weight: Bending, points 1.8
24 to 45
Thermal Diffusivity, mm2/s 15
4.7
Thermal Shock Resistance, points 3.9
26 to 68

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
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
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
68.8 to 74.6
Lead (Pb), % 97.2 to 98.2
0
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.2
0
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7
Zinc (Zn), % 0 to 0.0010
0