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Solder Alloy 135 vs. SAE-AISI 1140 Steel

Solder alloy 135 belongs to the otherwise unclassified metals classification, while SAE-AISI 1140 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 135 and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 27
190
Elongation at Break, % 20
14 to 18
Poisson's Ratio 0.41
0.29
Shear Modulus, GPa 9.5
72
Tensile Strength: Ultimate (UTS), MPa 35
600 to 700

Thermal Properties

Latent Heat of Fusion, J/g 36
250
Melting Completion (Liquidus), °C 250
1460
Melting Onset (Solidus), °C 190
1420
Specific Heat Capacity, J/kg-K 160
470
Thermal Conductivity, W/m-K 42
51
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.5
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 90
1.8
Density, g/cm3 10
7.8
Embodied Carbon, kg CO2/kg material 7.3
1.4
Embodied Energy, MJ/kg 120
18
Embodied Water, L/kg 720
46

Common Calculations

Stiffness to Weight: Axial, points 1.5
13
Stiffness to Weight: Bending, points 9.9
24
Strength to Weight: Axial, points 1.0
21 to 25
Strength to Weight: Bending, points 2.4
20 to 22
Thermal Diffusivity, mm2/s 27
14
Thermal Shock Resistance, points 3.5
18 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0.5 to 1.8
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.37 to 0.44
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
98.4 to 98.9
Lead (Pb), % 67.1 to 70
0
Manganese (Mn), % 0
0.7 to 1.0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.040
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0.080 to 0.13
Tin (Sn), % 29.5 to 30.5
0
Zinc (Zn), % 0 to 0.0010
0