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Solder Alloy 101 vs. SAE-AISI 4140 Steel

Solder alloy 101 belongs to the otherwise unclassified metals classification, while SAE-AISI 4140 steel belongs to the iron alloys. There are 27 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 101 and the bottom bar is SAE-AISI 4140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
200 to 310
Elastic (Young's, Tensile) Modulus, GPa 38
190
Elongation at Break, % 48
11 to 26
Poisson's Ratio 0.39
0.29
Shear Modulus, GPa 14
73
Tensile Strength: Ultimate (UTS), MPa 31
690 to 1080
Tensile Strength: Yield (Proof), MPa 27
590 to 990

Thermal Properties

Latent Heat of Fusion, J/g 46
250
Melting Completion (Liquidus), °C 180
1460
Melting Onset (Solidus), °C 180
1420
Specific Heat Capacity, J/kg-K 190
470
Thermal Conductivity, W/m-K 51
43
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.4

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 11
1.5
Embodied Energy, MJ/kg 180
20
Embodied Water, L/kg 930
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
74 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 9.9
920 to 2590
Stiffness to Weight: Axial, points 2.4
13
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 1.0
25 to 38
Strength to Weight: Bending, points 2.5
22 to 30
Thermal Diffusivity, mm2/s 31
12
Thermal Shock Resistance, points 2.4
20 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
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
0.38 to 0.43
Chromium (Cr), % 0
0.8 to 1.1
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
96.8 to 97.8
Lead (Pb), % 35.8 to 37.5
0
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 62.5 to 63.5
0
Zinc (Zn), % 0 to 0.0010
0