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Solder Alloy 704 vs. CC496K Bronze

Solder alloy 704 belongs to the otherwise unclassified metals classification, while CC496K 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 CC496K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
72
Elastic (Young's, Tensile) Modulus, GPa 51
97
Elongation at Break, % 30
8.6
Poisson's Ratio 0.36
0.35
Shear Modulus, GPa 19
36
Tensile Strength: Ultimate (UTS), MPa 55
210

Thermal Properties

Latent Heat of Fusion, J/g 62
170
Melting Completion (Liquidus), °C 240
900
Melting Onset (Solidus), °C 220
820
Specific Heat Capacity, J/kg-K 220
340
Thermal Conductivity, W/m-K 50
52
Thermal Expansion, µm/m-K 22
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
11
Electrical Conductivity: Equal Weight (Specific), % IACS 15
11

Otherwise Unclassified Properties

Density, g/cm3 7.5
9.2
Embodied Carbon, kg CO2/kg material 19
3.3
Embodied Energy, MJ/kg 320
52

Common Calculations

Stiffness to Weight: Axial, points 3.8
5.9
Stiffness to Weight: Bending, points 17
17
Strength to Weight: Axial, points 2.1
6.5
Strength to Weight: Bending, points 4.3
8.6
Thermal Diffusivity, mm2/s 30
17
Thermal Shock Resistance, points 3.5
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.010
Antimony (Sb), % 0 to 0.1
0 to 0.5
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.050
72 to 79.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.25
Lead (Pb), % 0 to 0.070
13 to 17
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0.5 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 4.8 to 5.2
0
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 94.3 to 95.2
6.0 to 8.0
Zinc (Zn), % 0 to 0.0010
0 to 2.0