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Solder Alloy 811 vs. S33550 Stainless Steel

Solder alloy 811 belongs to the otherwise unclassified metals classification, while S33550 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 811 and the bottom bar is S33550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
200
Elongation at Break, % 38
40
Poisson's Ratio 0.35
0.27
Shear Modulus, GPa 19
79
Tensile Strength: Ultimate (UTS), MPa 53
680

Thermal Properties

Latent Heat of Fusion, J/g 63
300
Melting Completion (Liquidus), °C 200
1400
Melting Onset (Solidus), °C 190
1360
Specific Heat Capacity, J/kg-K 230
480
Thermal Conductivity, W/m-K 59
15
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.4

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 14
4.3
Embodied Energy, MJ/kg 240
61
Embodied Water, L/kg 1200
190

Common Calculations

Stiffness to Weight: Axial, points 4.0
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.0
24
Strength to Weight: Bending, points 4.3
22
Thermal Diffusivity, mm2/s 35
3.9
Thermal Shock Resistance, points 3.3
15

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.8 to 3.2
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.040 to 0.1
Cerium (Ce), % 0
0.025 to 0.070
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
48.8 to 58.2
Lanthanum (La), % 0
0.025 to 0.070
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.010
16.5 to 20
Niobium (Nb), % 0
0.050 to 0.15
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 87.8 to 89.7
0
Zinc (Zn), % 7.5 to 8.5
0