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Solder Alloy 704 vs. C91300 Bell Metal

Solder alloy 704 belongs to the otherwise unclassified metals classification, while C91300 bell metal belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is C91300 bell metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
100
Elongation at Break, % 30
0.5
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
38
Tensile Strength: Ultimate (UTS), MPa 55
240

Thermal Properties

Latent Heat of Fusion, J/g 62
180
Melting Completion (Liquidus), °C 240
890
Melting Onset (Solidus), °C 220
820
Specific Heat Capacity, J/kg-K 220
360
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 15
7.4

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.6
Embodied Carbon, kg CO2/kg material 19
4.5
Embodied Energy, MJ/kg 320
74

Common Calculations

Stiffness to Weight: Axial, points 3.8
6.6
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 2.1
7.8
Strength to Weight: Bending, points 4.3
10
Thermal Shock Resistance, points 3.5
9.3

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.1
0 to 0.2
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
79 to 82
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.25
Lead (Pb), % 0 to 0.070
0 to 0.25
Nickel (Ni), % 0 to 0.010
0 to 0.5
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 4.8 to 5.2
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 94.3 to 95.2
18 to 20
Zinc (Zn), % 0 to 0.0010
0 to 0.25
Residuals, % 0
0 to 0.6