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C94400 Bronze vs. Solder Alloy 702

C94400 bronze 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 C94400 bronze and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
51
Elongation at Break, % 18
21
Poisson's Ratio 0.35
0.36
Shear Modulus, GPa 37
19
Tensile Strength: Ultimate (UTS), MPa 220
53

Thermal Properties

Latent Heat of Fusion, J/g 180
61
Melting Completion (Liquidus), °C 940
220
Melting Onset (Solidus), °C 790
220
Specific Heat Capacity, J/kg-K 350
220
Thermal Conductivity, W/m-K 52
62
Thermal Expansion, µm/m-K 19
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
15
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
18

Otherwise Unclassified Properties

Density, g/cm3 9.1
7.4
Embodied Carbon, kg CO2/kg material 3.4
17
Embodied Energy, MJ/kg 54
290

Common Calculations

Stiffness to Weight: Axial, points 6.1
3.8
Stiffness to Weight: Bending, points 17
17
Strength to Weight: Axial, points 6.8
2.0
Strength to Weight: Bending, points 9.0
4.2
Thermal Diffusivity, mm2/s 17
38
Thermal Shock Resistance, points 8.3
3.4

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0010
Antimony (Sb), % 0 to 0.8
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 76.1 to 84
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.15
0 to 0.020
Lead (Pb), % 9.0 to 12
0 to 0.070
Nickel (Ni), % 0 to 1.0
0 to 0.010
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
2.8 to 3.2
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 7.0 to 9.0
96.3 to 97.2
Zinc (Zn), % 0 to 0.8
0 to 0.0010