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Solder Alloy 704 vs. CC764S Brass

Solder alloy 704 belongs to the otherwise unclassified metals classification, while CC764S 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 CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
160
Elastic (Young's, Tensile) Modulus, GPa 51
110
Elongation at Break, % 30
15
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 19
41
Tensile Strength: Ultimate (UTS), MPa 55
680

Thermal Properties

Latent Heat of Fusion, J/g 62
180
Melting Completion (Liquidus), °C 240
850
Melting Onset (Solidus), °C 220
810
Specific Heat Capacity, J/kg-K 220
400
Thermal Conductivity, W/m-K 50
94
Thermal Expansion, µm/m-K 22
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
32
Electrical Conductivity: Equal Weight (Specific), % IACS 15
36

Otherwise Unclassified Properties

Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 19
2.9
Embodied Energy, MJ/kg 320
49

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.6
Stiffness to Weight: Bending, points 17
20
Strength to Weight: Axial, points 2.1
24
Strength to Weight: Bending, points 4.3
22
Thermal Diffusivity, mm2/s 30
30
Thermal Shock Resistance, points 3.5
22

Alloy Composition

Aluminum (Al), % 0 to 0.0010
1.0 to 3.0
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
52 to 66
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0.5 to 2.5
Lead (Pb), % 0 to 0.070
0 to 0.3
Manganese (Mn), % 0
0.3 to 4.0
Nickel (Ni), % 0 to 0.010
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.1
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
20.7 to 50.2