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C69400 Brass vs. C60800 Bronze

Both C69400 brass and C60800 bronze are copper alloys. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is C69400 brass and the bottom bar is C60800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
55
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
46
Shear Strength, MPa 350
290
Tensile Strength: Ultimate (UTS), MPa 570
390
Tensile Strength: Yield (Proof), MPa 270
150

Thermal Properties

Latent Heat of Fusion, J/g 260
220
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 920
1060
Melting Onset (Solidus), °C 820
1050
Specific Heat Capacity, J/kg-K 410
410
Thermal Conductivity, W/m-K 26
80
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
17
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
18

Otherwise Unclassified Properties

Base Metal Price, % relative 27
29
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 44
48
Embodied Water, L/kg 300
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
170
Resilience: Unit (Modulus of Resilience), kJ/m3 340
94
Stiffness to Weight: Axial, points 7.4
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19
13
Strength to Weight: Bending, points 18
14
Thermal Diffusivity, mm2/s 7.7
23
Thermal Shock Resistance, points 20
14

Alloy Composition

Aluminum (Al), % 0
5.0 to 6.5
Arsenic (As), % 0
0.020 to 0.35
Copper (Cu), % 80 to 83
92.5 to 95
Iron (Fe), % 0 to 0.2
0 to 0.1
Lead (Pb), % 0 to 0.3
0 to 0.1
Silicon (Si), % 3.5 to 4.5
0
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0
0 to 0.5