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SAE-AISI T8 Steel vs. Solder Alloy 137

SAE-AISI T8 steel belongs to the iron alloys classification, while solder alloy 137 belongs to the otherwise unclassified metals. There are 21 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 SAE-AISI T8 steel and the bottom bar is solder alloy 137.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
24
Poisson's Ratio 0.29
0.42
Shear Modulus, GPa 78
8.3
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
34

Thermal Properties

Latent Heat of Fusion, J/g 250
33
Melting Completion (Liquidus), °C 1730
270
Melting Onset (Solidus), °C 1670
190
Specific Heat Capacity, J/kg-K 420
150
Thermal Conductivity, W/m-K 18
38
Thermal Expansion, µm/m-K 12
27

Otherwise Unclassified Properties

Base Metal Price, % relative 45
85
Density, g/cm3 9.0
10
Embodied Carbon, kg CO2/kg material 10
6.3
Embodied Energy, MJ/kg 160
100
Embodied Water, L/kg 120
660

Common Calculations

Stiffness to Weight: Axial, points 12
1.3
Stiffness to Weight: Bending, points 22
9.2
Strength to Weight: Axial, points 24 to 66
0.9
Strength to Weight: Bending, points 21 to 41
2.2
Thermal Diffusivity, mm2/s 4.8
25
Thermal Shock Resistance, points 24 to 66
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0.5 to 3.0
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 4.3 to 5.8
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), % 69.3 to 75.4
0 to 0.020
Lead (Pb), % 0
75.9 to 80
Manganese (Mn), % 0.2 to 0.4
0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
19.5 to 20.5
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0
Zinc (Zn), % 0
0 to 0.0010