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Solder Alloy 704 vs. CC499K Bronze

Solder alloy 704 belongs to the otherwise unclassified metals classification, while CC499K bronze belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is CC499K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
73
Elastic (Young's, Tensile) Modulus, GPa 51
110
Elongation at Break, % 30
13
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
41
Tensile Strength: Ultimate (UTS), MPa 55
260

Thermal Properties

Latent Heat of Fusion, J/g 62
190
Melting Completion (Liquidus), °C 240
1000
Melting Onset (Solidus), °C 220
920
Specific Heat Capacity, J/kg-K 220
370
Thermal Conductivity, W/m-K 50
73
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
12
Electrical Conductivity: Equal Weight (Specific), % IACS 15
12

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.8
Embodied Carbon, kg CO2/kg material 19
3.1
Embodied Energy, MJ/kg 320
51

Common Calculations

Stiffness to Weight: Axial, points 3.8
6.9
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 2.1
8.1
Strength to Weight: Bending, points 4.3
10
Thermal Diffusivity, mm2/s 30
22
Thermal Shock Resistance, points 3.5
9.2

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.010
Antimony (Sb), % 0 to 0.1
0 to 0.1
Arsenic (As), % 0 to 0.030
0 to 0.030
Bismuth (Bi), % 0 to 0.1
0 to 0.020
Cadmium (Cd), % 0 to 0.0020
0 to 0.020
Chromium (Cr), % 0
0 to 0.020
Copper (Cu), % 0 to 0.050
84 to 88
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
0 to 3.0
Nickel (Ni), % 0 to 0.010
0 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 4.8 to 5.2
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 94.3 to 95.2
4.0 to 6.0
Zinc (Zn), % 0 to 0.0010
4.0 to 6.0