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SAE-AISI 4140 Steel vs. Solder Alloy 117

SAE-AISI 4140 steel belongs to the iron alloys classification, while solder alloy 117 belongs to the otherwise unclassified metals. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4140 steel and the bottom bar is solder alloy 117.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 310
11
Elastic (Young's, Tensile) Modulus, GPa 190
23
Elongation at Break, % 11 to 26
20
Poisson's Ratio 0.29
0.42
Shear Modulus, GPa 73
8.1
Tensile Strength: Ultimate (UTS), MPa 690 to 1080
33

Thermal Properties

Latent Heat of Fusion, J/g 250
31
Melting Completion (Liquidus), °C 1460
280
Melting Onset (Solidus), °C 1420
180
Specific Heat Capacity, J/kg-K 470
150
Thermal Conductivity, W/m-K 43
37
Thermal Expansion, µm/m-K 13
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
85
Density, g/cm3 7.8
11
Embodied Carbon, kg CO2/kg material 1.5
6.1
Embodied Energy, MJ/kg 20
100
Embodied Water, L/kg 51
610

Common Calculations

Stiffness to Weight: Axial, points 13
1.2
Stiffness to Weight: Bending, points 24
9.0
Strength to Weight: Axial, points 25 to 38
0.88
Strength to Weight: Bending, points 22 to 30
2.2
Thermal Diffusivity, mm2/s 12
24
Thermal Shock Resistance, points 20 to 32
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 96.8 to 97.8
0 to 0.020
Lead (Pb), % 0
78.4 to 80.5
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
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
19.5 to 20.5
Zinc (Zn), % 0
0 to 0.0010