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Solder Alloy 704 vs. CC494K Bronze

Solder alloy 704 belongs to the otherwise unclassified metals classification, while CC494K 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 CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
67
Elastic (Young's, Tensile) Modulus, GPa 51
100
Elongation at Break, % 30
7.6
Poisson's Ratio 0.36
0.35
Shear Modulus, GPa 19
39
Tensile Strength: Ultimate (UTS), MPa 55
210

Thermal Properties

Latent Heat of Fusion, J/g 62
180
Melting Completion (Liquidus), °C 240
970
Melting Onset (Solidus), °C 220
890
Specific Heat Capacity, J/kg-K 220
360
Thermal Conductivity, W/m-K 50
63
Thermal Expansion, µm/m-K 22
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
16
Electrical Conductivity: Equal Weight (Specific), % IACS 15
16

Otherwise Unclassified Properties

Density, g/cm3 7.5
9.1
Embodied Carbon, kg CO2/kg material 19
3.1
Embodied Energy, MJ/kg 320
50

Common Calculations

Stiffness to Weight: Axial, points 3.8
6.4
Stiffness to Weight: Bending, points 17
17
Strength to Weight: Axial, points 2.1
6.5
Strength to Weight: Bending, points 4.3
8.8
Thermal Diffusivity, mm2/s 30
19
Thermal Shock Resistance, points 3.5
7.8

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
78 to 87
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
8.0 to 10
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0 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
4.0 to 6.0
Zinc (Zn), % 0 to 0.0010
0 to 2.0