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S21900 Stainless Steel vs. Solder Alloy 503

S21900 stainless steel belongs to the iron alloys classification, while solder alloy 503 belongs to the otherwise unclassified metals. 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 S21900 stainless steel and the bottom bar is solder alloy 503.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
54
Elongation at Break, % 50
30
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 78
20
Tensile Strength: Ultimate (UTS), MPa 710
57

Thermal Properties

Latent Heat of Fusion, J/g 290
69
Melting Completion (Liquidus), °C 1400
380
Melting Onset (Solidus), °C 1350
220
Specific Heat Capacity, J/kg-K 480
230
Thermal Conductivity, W/m-K 14
61
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
14
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
17

Otherwise Unclassified Properties

Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.0
16
Embodied Energy, MJ/kg 43
270

Common Calculations

Stiffness to Weight: Axial, points 14
4.1
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 26
2.1
Strength to Weight: Bending, points 23
4.4
Thermal Diffusivity, mm2/s 3.8
35
Thermal Shock Resistance, points 15
3.5

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 0.080
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
5.5 to 6.5
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 59.4 to 67.4
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 8.0 to 10
0
Nickel (Ni), % 5.5 to 7.5
0 to 0.010
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
1.8 to 2.2
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
90.8 to 92.7
Zinc (Zn), % 0
0 to 0.0010