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Solder Alloy 704 vs. CC761S Brass

Solder alloy 704 belongs to the otherwise unclassified metals classification, while CC761S brass 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 CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
150
Elastic (Young's, Tensile) Modulus, GPa 51
110
Elongation at Break, % 30
8.7
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 19
42
Tensile Strength: Ultimate (UTS), MPa 55
540

Thermal Properties

Latent Heat of Fusion, J/g 62
260
Melting Completion (Liquidus), °C 240
960
Melting Onset (Solidus), °C 220
910
Specific Heat Capacity, J/kg-K 220
410
Thermal Conductivity, W/m-K 50
27
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
40
Electrical Conductivity: Equal Weight (Specific), % IACS 15
43

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.3
Embodied Carbon, kg CO2/kg material 19
2.7
Embodied Energy, MJ/kg 320
45

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.4
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 2.1
18
Strength to Weight: Bending, points 4.3
18
Thermal Diffusivity, mm2/s 30
8.0
Thermal Shock Resistance, points 3.5
19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.1
Antimony (Sb), % 0 to 0.1
0 to 0.050
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 83
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.6
Lead (Pb), % 0 to 0.070
0 to 0.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
3.0 to 5.0
Silver (Ag), % 4.8 to 5.2
0
Tin (Sn), % 94.3 to 95.2
0 to 0.3
Zinc (Zn), % 0 to 0.0010
8.9 to 19