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C22000 Bronze vs. C68700 Brass

Both C22000 bronze and C68700 brass are copper alloys. They have 88% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C22000 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 0.33
0.32
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 260 to 520
390
Tensile Strength: Yield (Proof), MPa 69 to 500
140

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 1040
970
Melting Onset (Solidus), °C 1020
930
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 190
100
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
23
Electrical Conductivity: Equal Weight (Specific), % IACS 45
25

Otherwise Unclassified Properties

Base Metal Price, % relative 29
26
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 42
46
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 1110
90
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 8.1 to 17
13
Strength to Weight: Bending, points 10 to 17
14
Thermal Diffusivity, mm2/s 56
30
Thermal Shock Resistance, points 8.8 to 18
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 89 to 91
76 to 79
Iron (Fe), % 0 to 0.050
0 to 0.060
Lead (Pb), % 0 to 0.050
0 to 0.070
Zinc (Zn), % 8.7 to 11
17.8 to 22.2
Residuals, % 0
0 to 0.5