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SAE-AISI S7 Steel vs. Solder Alloy 135

SAE-AISI S7 steel belongs to the iron alloys classification, while solder alloy 135 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S7 steel and the bottom bar is solder alloy 135.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
27
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 74
9.5
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
35

Thermal Properties

Latent Heat of Fusion, J/g 260
36
Melting Completion (Liquidus), °C 1460
250
Melting Onset (Solidus), °C 1420
190
Specific Heat Capacity, J/kg-K 470
160
Thermal Conductivity, W/m-K 40
42
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
9.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
90
Density, g/cm3 7.8
10
Embodied Carbon, kg CO2/kg material 2.3
7.3
Embodied Energy, MJ/kg 31
120
Embodied Water, L/kg 65
720

Common Calculations

Stiffness to Weight: Axial, points 14
1.5
Stiffness to Weight: Bending, points 25
9.9
Strength to Weight: Axial, points 24 to 72
1.0
Strength to Weight: Bending, points 22 to 46
2.4
Thermal Diffusivity, mm2/s 11
27
Thermal Shock Resistance, points 22 to 66
3.5

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0.5 to 1.8
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.45 to 0.55
0
Chromium (Cr), % 3.0 to 3.5
0
Copper (Cu), % 0 to 0.25
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 91.6 to 94.9
0 to 0.020
Lead (Pb), % 0
67.1 to 70
Manganese (Mn), % 0.2 to 0.9
0
Molybdenum (Mo), % 1.3 to 1.8
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 1.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
29.5 to 30.5
Vanadium (V), % 0 to 0.3
0
Zinc (Zn), % 0
0 to 0.0010