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CC494K Bronze vs. Solder Alloy 121

CC494K bronze belongs to the copper alloys classification, while solder alloy 121 belongs to the otherwise unclassified metals. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is CC494K bronze and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 67
11
Elastic (Young's, Tensile) Modulus, GPa 100
21
Elongation at Break, % 7.6
25
Poisson's Ratio 0.35
0.43
Shear Modulus, GPa 39
7.5
Tensile Strength: Ultimate (UTS), MPa 210
32

Thermal Properties

Latent Heat of Fusion, J/g 180
29
Melting Completion (Liquidus), °C 970
290
Melting Onset (Solidus), °C 890
230
Specific Heat Capacity, J/kg-K 360
140
Thermal Conductivity, W/m-K 63
31
Thermal Expansion, µm/m-K 19
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 16
7.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
80
Density, g/cm3 9.1
11
Embodied Carbon, kg CO2/kg material 3.1
5.6
Embodied Energy, MJ/kg 50
93
Embodied Water, L/kg 360
580

Common Calculations

Stiffness to Weight: Axial, points 6.4
1.1
Stiffness to Weight: Bending, points 17
8.6
Strength to Weight: Axial, points 6.5
0.84
Strength to Weight: Bending, points 8.8
2.1
Thermal Diffusivity, mm2/s 19
20
Thermal Shock Resistance, points 7.8
3.9

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.0010
Antimony (Sb), % 0 to 0.5
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 78 to 87
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.25
0 to 0.020
Lead (Pb), % 8.0 to 10
83.4 to 85.5
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 2.0
0 to 0.010
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
14.5 to 15.5
Zinc (Zn), % 0 to 2.0
0 to 0.0010