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Solder Alloy 501 vs. SAE-AISI 8740 Steel

Solder alloy 501 belongs to the otherwise unclassified metals classification, while SAE-AISI 8740 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 501 and the bottom bar is SAE-AISI 8740 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
170 to 200
Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 22
11 to 23
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
73
Tensile Strength: Ultimate (UTS), MPa 29
580 to 670

Thermal Properties

Latent Heat of Fusion, J/g 60
250
Melting Completion (Liquidus), °C 230
1460
Melting Onset (Solidus), °C 220
1420
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 67
39
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 17
8.4

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 15
1.5
Embodied Energy, MJ/kg 260
20
Embodied Water, L/kg 1390
50

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 1.1
20 to 24
Strength to Weight: Bending, points 2.9
20 to 22
Thermal Diffusivity, mm2/s 41
10
Thermal Shock Resistance, points 1.9
17 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.060
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0.5 to 0.9
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
96.5 to 97.7
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.010
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 0.2 to 0.4
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 98.3 to 99.3
0
Zinc (Zn), % 0 to 0.0010
0