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SAE-AISI 5155 Steel vs. Solder Alloy 811

SAE-AISI 5155 steel belongs to the iron alloys classification, while solder alloy 811 belongs to the otherwise unclassified metals. There are 23 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 SAE-AISI 5155 steel and the bottom bar is solder alloy 811.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
52
Elongation at Break, % 21
38
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 73
19
Tensile Strength: Ultimate (UTS), MPa 620
53

Thermal Properties

Latent Heat of Fusion, J/g 250
63
Melting Completion (Liquidus), °C 1450
200
Melting Onset (Solidus), °C 1410
190
Specific Heat Capacity, J/kg-K 470
230
Thermal Conductivity, W/m-K 49
59
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
14
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
17

Otherwise Unclassified Properties

Density, g/cm3 7.8
7.3
Embodied Carbon, kg CO2/kg material 1.4
14
Embodied Energy, MJ/kg 19
240
Embodied Water, L/kg 49
1200

Common Calculations

Stiffness to Weight: Axial, points 13
4.0
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 22
2.0
Strength to Weight: Bending, points 21
4.3
Thermal Diffusivity, mm2/s 13
35
Thermal Shock Resistance, points 20
3.3

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
2.8 to 3.2
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.51 to 0.59
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 97.2 to 97.9
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.7 to 0.9
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
87.8 to 89.7
Zinc (Zn), % 0
7.5 to 8.5