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Solder Alloy 124 vs. SAE-AISI D7 Steel

Solder alloy 124 belongs to the otherwise unclassified metals classification, while SAE-AISI D7 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 D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
190
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 5.8
73
Tensile Strength: Ultimate (UTS), MPa 27
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 24
270
Melting Completion (Liquidus), °C 330
1440
Melting Onset (Solidus), °C 320
1400
Specific Heat Capacity, J/kg-K 130
480
Thermal Conductivity, W/m-K 22
27
Thermal Expansion, µm/m-K 29
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
10
Density, g/cm3 11
7.6
Embodied Carbon, kg CO2/kg material 4.1
11
Embodied Energy, MJ/kg 68
180
Embodied Water, L/kg 470
130

Common Calculations

Stiffness to Weight: Axial, points 0.83
14
Stiffness to Weight: Bending, points 7.6
25
Strength to Weight: Axial, points 0.65
29 to 78
Strength to Weight: Bending, points 1.8
25 to 48
Thermal Diffusivity, mm2/s 15
7.4
Thermal Shock Resistance, points 3.9
27 to 72

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
2.2 to 2.5
Chromium (Cr), % 0
11.5 to 13.5
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
76.6 to 81.9
Lead (Pb), % 97.2 to 98.2
0
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.6
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.2
0
Vanadium (V), % 0
3.8 to 4.4
Zinc (Zn), % 0 to 0.0010
0