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Solder Alloy 704 vs. CC750S Brass

Solder alloy 704 belongs to the otherwise unclassified metals classification, while CC750S 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 CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
54
Elastic (Young's, Tensile) Modulus, GPa 51
110
Elongation at Break, % 30
13
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 19
40
Tensile Strength: Ultimate (UTS), MPa 55
200

Thermal Properties

Latent Heat of Fusion, J/g 62
170
Melting Completion (Liquidus), °C 240
860
Melting Onset (Solidus), °C 220
810
Specific Heat Capacity, J/kg-K 220
380
Thermal Conductivity, W/m-K 50
110
Thermal Expansion, µm/m-K 22
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
24
Electrical Conductivity: Equal Weight (Specific), % IACS 15
26

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.2
Embodied Carbon, kg CO2/kg material 19
2.8
Embodied Energy, MJ/kg 320
46

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.1
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 2.1
6.8
Strength to Weight: Bending, points 4.3
9.3
Thermal Diffusivity, mm2/s 30
35
Thermal Shock Resistance, points 3.5
6.7

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.1
Antimony (Sb), % 0 to 0.1
0
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
62 to 67
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.8
Lead (Pb), % 0 to 0.070
1.0 to 3.0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.050
Silver (Ag), % 4.8 to 5.2
0
Tin (Sn), % 94.3 to 95.2
0 to 1.5
Zinc (Zn), % 0 to 0.0010
26.3 to 36