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Solder Alloy 704 vs. C48200 Brass

Solder alloy 704 belongs to the otherwise unclassified metals classification, while C48200 brass belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is C48200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
100
Elongation at Break, % 30
15 to 40
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 19
40
Tensile Strength: Ultimate (UTS), MPa 55
400 to 500

Thermal Properties

Latent Heat of Fusion, J/g 62
170
Melting Completion (Liquidus), °C 240
900
Melting Onset (Solidus), °C 220
890
Specific Heat Capacity, J/kg-K 220
380
Thermal Conductivity, W/m-K 50
120
Thermal Expansion, µm/m-K 22
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
26
Electrical Conductivity: Equal Weight (Specific), % IACS 15
29

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.0
Embodied Carbon, kg CO2/kg material 19
2.7
Embodied Energy, MJ/kg 320
47

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.2
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 2.1
14 to 17
Strength to Weight: Bending, points 4.3
15 to 17
Thermal Diffusivity, mm2/s 30
38
Thermal Shock Resistance, points 3.5
13 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
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
59 to 62
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.1
Lead (Pb), % 0 to 0.070
0.4 to 1.0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 4.8 to 5.2
0
Tin (Sn), % 94.3 to 95.2
0.5 to 1.0
Zinc (Zn), % 0 to 0.0010
35.5 to 40.1
Residuals, % 0
0 to 0.4