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Solder Alloy 181 vs. EN 1.4404 Stainless Steel

Solder alloy 181 belongs to the otherwise unclassified metals classification, while EN 1.4404 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 181 and the bottom bar is EN 1.4404 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
200
Elongation at Break, % 41
14 to 43
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 6.1
78
Tensile Strength: Ultimate (UTS), MPa 27
600 to 900

Thermal Properties

Latent Heat of Fusion, J/g 26
290
Melting Completion (Liquidus), °C 310
1440
Melting Onset (Solidus), °C 300
1400
Specific Heat Capacity, J/kg-K 130
470
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 29
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
2.6

Otherwise Unclassified Properties

Density, g/cm3 11
7.9
Embodied Carbon, kg CO2/kg material 6.2
3.8
Embodied Energy, MJ/kg 100
52

Common Calculations

Stiffness to Weight: Axial, points 0.86
14
Stiffness to Weight: Bending, points 7.7
25
Strength to Weight: Axial, points 0.66
21 to 32
Strength to Weight: Bending, points 1.8
20 to 26
Thermal Diffusivity, mm2/s 16
4.0
Thermal Shock Resistance, points 3.8
13 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
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 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
62.8 to 71.5
Lead (Pb), % 96.2 to 98
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 0.010
10 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.0010
0