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SAE-AISI 8740 Steel vs. Solder Alloy 111

SAE-AISI 8740 steel belongs to the iron alloys classification, while solder alloy 111 belongs to the otherwise unclassified metals. 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 SAE-AISI 8740 steel and the bottom bar is solder alloy 111.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
14
Elastic (Young's, Tensile) Modulus, GPa 190
33
Elongation at Break, % 11 to 23
35
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 73
12
Tensile Strength: Ultimate (UTS), MPa 580 to 670
41

Thermal Properties

Latent Heat of Fusion, J/g 250
41
Melting Completion (Liquidus), °C 1460
220
Melting Onset (Solidus), °C 1420
180
Specific Heat Capacity, J/kg-K 470
180
Thermal Conductivity, W/m-K 39
48
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
11

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 1.5
9.4
Embodied Energy, MJ/kg 20
160
Embodied Water, L/kg 50
830

Common Calculations

Stiffness to Weight: Axial, points 13
2.0
Stiffness to Weight: Bending, points 24
12
Strength to Weight: Axial, points 20 to 24
1.2
Strength to Weight: Bending, points 20 to 22
2.8
Thermal Diffusivity, mm2/s 10
29
Thermal Shock Resistance, points 17 to 20
3.5

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 96.5 to 97.7
0 to 0.020
Lead (Pb), % 0
48.8 to 50.5
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 0.4 to 0.7
0 to 0.010
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
49.5 to 50.5
Zinc (Zn), % 0
0 to 0.0010