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C69430 Brass vs. Solder Alloy 702

C69430 brass belongs to the copper alloys classification, while solder alloy 702 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C69430 brass and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
51
Elongation at Break, % 17
21
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 42
19
Tensile Strength: Ultimate (UTS), MPa 570
53

Thermal Properties

Latent Heat of Fusion, J/g 260
61
Melting Completion (Liquidus), °C 920
220
Melting Onset (Solidus), °C 820
220
Specific Heat Capacity, J/kg-K 410
220
Thermal Conductivity, W/m-K 26
62
Thermal Expansion, µm/m-K 18
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
15
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
18

Otherwise Unclassified Properties

Density, g/cm3 8.3
7.4
Embodied Carbon, kg CO2/kg material 2.7
17
Embodied Energy, MJ/kg 44
290

Common Calculations

Stiffness to Weight: Axial, points 7.4
3.8
Stiffness to Weight: Bending, points 19
17
Strength to Weight: Axial, points 19
2.0
Strength to Weight: Bending, points 18
4.2
Thermal Diffusivity, mm2/s 7.7
38
Thermal Shock Resistance, points 20
3.4

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0.030 to 0.060
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 80 to 83
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.2
0 to 0.020
Lead (Pb), % 0 to 0.3
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 3.5 to 4.5
0
Silver (Ag), % 0
2.8 to 3.2
Tin (Sn), % 0
96.3 to 97.2
Zinc (Zn), % 11.4 to 16.5
0 to 0.0010
Residuals, % 0 to 0.5
0