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C68700 Brass vs. Solder Alloy 103

C68700 brass belongs to the copper alloys classification, while solder alloy 103 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is solder alloy 103.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
37
Poisson's Ratio 0.32
0.39
Shear Modulus, GPa 41
13
Tensile Strength: Ultimate (UTS), MPa 390
52

Thermal Properties

Latent Heat of Fusion, J/g 190
45
Melting Completion (Liquidus), °C 970
190
Melting Onset (Solidus), °C 930
180
Specific Heat Capacity, J/kg-K 400
180
Thermal Conductivity, W/m-K 100
50
Thermal Expansion, µm/m-K 19
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
11
Electrical Conductivity: Equal Weight (Specific), % IACS 25
12

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.8
10
Embodied Energy, MJ/kg 46
180
Embodied Water, L/kg 340
910

Common Calculations

Stiffness to Weight: Axial, points 7.3
2.3
Stiffness to Weight: Bending, points 19
12
Strength to Weight: Axial, points 13
1.6
Strength to Weight: Bending, points 14
3.5
Thermal Diffusivity, mm2/s 30
30
Thermal Shock Resistance, points 13
4.3

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0.020 to 0.1
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 76 to 79
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.060
0 to 0.020
Lead (Pb), % 0 to 0.070
38.8 to 40.5
Nickel (Ni), % 0
0 to 0.010
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
59.5 to 60.5
Zinc (Zn), % 17.8 to 22.2
0 to 0.0010
Residuals, % 0 to 0.5
0