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Solder Alloy 503 vs. C94900 Bronze

Solder alloy 503 belongs to the otherwise unclassified metals classification, while C94900 bronze belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 503 and the bottom bar is C94900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 54
110
Elongation at Break, % 30
17
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 20
41
Tensile Strength: Ultimate (UTS), MPa 57
300

Thermal Properties

Latent Heat of Fusion, J/g 69
190
Melting Completion (Liquidus), °C 380
980
Melting Onset (Solidus), °C 220
910
Specific Heat Capacity, J/kg-K 230
370
Thermal Expansion, µm/m-K 22
18

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.8
Embodied Carbon, kg CO2/kg material 16
3.4
Embodied Energy, MJ/kg 270
55

Common Calculations

Stiffness to Weight: Axial, points 4.1
6.9
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 2.1
9.4
Strength to Weight: Bending, points 4.4
11
Thermal Shock Resistance, points 3.5
11

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.1
0 to 0.25
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.080
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 5.5 to 6.5
79 to 81
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.3
Lead (Pb), % 0 to 0.070
4.0 to 6.0
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 1.8 to 2.2
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 90.8 to 92.7
4.0 to 6.0
Zinc (Zn), % 0 to 0.0010
4.0 to 6.0
Residuals, % 0
0 to 0.8