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Solder Alloy 201 vs. SAE-AISI T8 Steel

Solder alloy 201 belongs to the otherwise unclassified metals classification, while SAE-AISI T8 steel belongs to the iron alloys. There are 20 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 solder alloy 201 and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
200
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 19
78
Tensile Strength: Ultimate (UTS), MPa 41
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 64
250
Melting Completion (Liquidus), °C 240
1730
Melting Onset (Solidus), °C 240
1670
Specific Heat Capacity, J/kg-K 220
420
Thermal Conductivity, W/m-K 28
18
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Density, g/cm3 7.3
9.0
Embodied Carbon, kg CO2/kg material 15
10
Embodied Energy, MJ/kg 250
160
Embodied Water, L/kg 1320
120

Common Calculations

Stiffness to Weight: Axial, points 3.8
12
Stiffness to Weight: Bending, points 17
22
Strength to Weight: Axial, points 1.6
24 to 66
Strength to Weight: Bending, points 3.6
21 to 41
Thermal Diffusivity, mm2/s 17
4.8
Thermal Shock Resistance, points 2.7
24 to 66

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 4.5 to 5.5
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
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0 to 0.050
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
69.3 to 75.4
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.4
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 94 to 95.5
0
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4
Zinc (Zn), % 0 to 0.0010
0