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C65400 Bronze vs. C68700 Brass

Both C65400 bronze and C68700 brass are copper alloys. They have 78% 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 C65400 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 43
41
Tensile Strength: Ultimate (UTS), MPa 500 to 1060
390
Tensile Strength: Yield (Proof), MPa 170 to 910
140

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1020
970
Melting Onset (Solidus), °C 960
930
Specific Heat Capacity, J/kg-K 400
400
Thermal Conductivity, W/m-K 36
100
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
23
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
25

Otherwise Unclassified Properties

Base Metal Price, % relative 31
26
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 45
46
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 3640
90
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16 to 34
13
Strength to Weight: Bending, points 16 to 27
14
Thermal Diffusivity, mm2/s 10
30
Thermal Shock Resistance, points 18 to 39
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Chromium (Cr), % 0.010 to 0.12
0
Copper (Cu), % 93.8 to 96.1
76 to 79
Iron (Fe), % 0
0 to 0.060
Lead (Pb), % 0 to 0.050
0 to 0.070
Silicon (Si), % 2.7 to 3.4
0
Tin (Sn), % 1.2 to 1.9
0
Zinc (Zn), % 0 to 0.5
17.8 to 22.2
Residuals, % 0
0 to 0.5