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Solder Alloy 503 vs. S44625 Stainless Steel

Solder alloy 503 belongs to the otherwise unclassified metals classification, while S44625 stainless steel belongs to the iron alloys. There are 22 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 solder alloy 503 and the bottom bar is S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 54
200
Elongation at Break, % 30
22
Poisson's Ratio 0.36
0.27
Shear Modulus, GPa 20
80
Tensile Strength: Ultimate (UTS), MPa 57
590

Thermal Properties

Latent Heat of Fusion, J/g 69
290
Melting Completion (Liquidus), °C 380
1440
Melting Onset (Solidus), °C 220
1400
Specific Heat Capacity, J/kg-K 230
480
Thermal Conductivity, W/m-K 61
17
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.6

Otherwise Unclassified Properties

Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 16
2.8
Embodied Energy, MJ/kg 270
39

Common Calculations

Stiffness to Weight: Axial, points 4.1
15
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
21
Strength to Weight: Bending, points 4.4
20
Thermal Diffusivity, mm2/s 35
4.6
Thermal Shock Resistance, points 3.5
19

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), % 0 to 0.080
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
25 to 27.5
Copper (Cu), % 5.5 to 6.5
0 to 0.2
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
69.4 to 74.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0 to 0.010
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.4
Silver (Ag), % 1.8 to 2.2
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 90.8 to 92.7
0
Zinc (Zn), % 0 to 0.0010
0