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SAE-AISI T8 Steel vs. Solder Alloy 702

SAE-AISI T8 steel belongs to the iron alloys classification, while solder alloy 702 belongs to the otherwise unclassified metals. There are 19 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 T8 steel and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
51
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 78
19
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
53

Thermal Properties

Latent Heat of Fusion, J/g 250
61
Melting Completion (Liquidus), °C 1730
220
Melting Onset (Solidus), °C 1670
220
Specific Heat Capacity, J/kg-K 420
220
Thermal Conductivity, W/m-K 18
62
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Density, g/cm3 9.0
7.4
Embodied Carbon, kg CO2/kg material 10
17
Embodied Energy, MJ/kg 160
290

Common Calculations

Stiffness to Weight: Axial, points 12
3.8
Stiffness to Weight: Bending, points 22
17
Strength to Weight: Axial, points 24 to 66
2.0
Strength to Weight: Bending, points 21 to 41
4.2
Thermal Diffusivity, mm2/s 4.8
38
Thermal Shock Resistance, points 24 to 66
3.4

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
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 0.050
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
0 to 0.070
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
2.8 to 3.2
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
96.3 to 97.2
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0
Zinc (Zn), % 0
0 to 0.0010