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C61800 Bronze vs. C87400 Brass

Both C61800 bronze and C87400 brass are copper alloys. They have 83% of their average alloy composition in common. There are 28 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 C61800 bronze and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 26
21
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
41
Tensile Strength: Ultimate (UTS), MPa 740
390
Tensile Strength: Yield (Proof), MPa 310
160

Thermal Properties

Latent Heat of Fusion, J/g 230
250
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 1050
920
Melting Onset (Solidus), °C 1040
820
Specific Heat Capacity, J/kg-K 440
400
Thermal Conductivity, W/m-K 64
28
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 14
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 28
27
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 52
44
Embodied Water, L/kg 390
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
65
Resilience: Unit (Modulus of Resilience), kJ/m3 420
120
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 25
13
Strength to Weight: Bending, points 22
14
Thermal Diffusivity, mm2/s 18
8.3
Thermal Shock Resistance, points 26
14

Alloy Composition

Aluminum (Al), % 8.5 to 11
0 to 0.8
Copper (Cu), % 86.9 to 91
79 to 85.5
Iron (Fe), % 0.5 to 1.5
0
Lead (Pb), % 0 to 0.020
0 to 1.0
Silicon (Si), % 0 to 0.1
2.5 to 4.0
Zinc (Zn), % 0 to 0.020
12 to 16
Residuals, % 0
0 to 0.8