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C64200 Bronze vs. C68700 Brass

Both C64200 bronze and C68700 brass are copper alloys. They have 80% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C64200 bronze and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 540 to 640
390
Tensile Strength: Yield (Proof), MPa 230 to 320
140

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 1000
970
Melting Onset (Solidus), °C 980
930
Specific Heat Capacity, J/kg-K 430
400
Thermal Conductivity, W/m-K 45
100
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
23
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
25

Otherwise Unclassified Properties

Base Metal Price, % relative 29
26
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 50
46
Embodied Water, L/kg 370
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 470
90
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18 to 21
13
Strength to Weight: Bending, points 18 to 20
14
Thermal Diffusivity, mm2/s 13
30
Thermal Shock Resistance, points 20 to 23
13

Alloy Composition

Aluminum (Al), % 6.3 to 7.6
1.8 to 2.5
Arsenic (As), % 0 to 0.15
0.020 to 0.1
Copper (Cu), % 88.2 to 92.2
76 to 79
Iron (Fe), % 0 to 0.3
0 to 0.060
Lead (Pb), % 0 to 0.050
0 to 0.070
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 1.5 to 2.2
0
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
17.8 to 22.2
Residuals, % 0
0 to 0.5