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S21640 Stainless Steel vs. Solder Alloy 104

S21640 stainless steel belongs to the iron alloys classification, while solder alloy 104 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S21640 stainless steel and the bottom bar is solder alloy 104.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
37
Elongation at Break, % 46
46
Poisson's Ratio 0.28
0.39
Shear Modulus, GPa 78
13
Tensile Strength: Ultimate (UTS), MPa 740
51

Thermal Properties

Latent Heat of Fusion, J/g 290
45
Melting Completion (Liquidus), °C 1430
190
Melting Onset (Solidus), °C 1380
180
Specific Heat Capacity, J/kg-K 480
180
Thermal Conductivity, W/m-K 15
50
Thermal Expansion, µm/m-K 17
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
11

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 3.6
10
Embodied Energy, MJ/kg 51
180
Embodied Water, L/kg 150
900

Common Calculations

Stiffness to Weight: Axial, points 14
2.3
Stiffness to Weight: Bending, points 25
12
Strength to Weight: Axial, points 27
1.6
Strength to Weight: Bending, points 23
3.4
Thermal Diffusivity, mm2/s 4.0
30
Thermal Shock Resistance, points 16
4.0

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.050
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 63 to 74.3
0 to 0.020
Lead (Pb), % 0
39 to 40.5
Manganese (Mn), % 3.5 to 6.5
0
Molybdenum (Mo), % 0.5 to 2.0
0
Nickel (Ni), % 4.0 to 6.5
0 to 0.010
Niobium (Nb), % 0.1 to 1.0
0
Nitrogen (N), % 0.080 to 0.3
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
59.5 to 60.5
Zinc (Zn), % 0
0 to 0.0010