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C67400 Bronze vs. C87400 Brass

Both C67400 bronze and C87400 brass are copper alloys. They have 74% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C67400 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, % 22 to 28
21
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 41
41
Tensile Strength: Ultimate (UTS), MPa 480 to 610
390
Tensile Strength: Yield (Proof), MPa 250 to 370
160

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 890
920
Melting Onset (Solidus), °C 870
820
Specific Heat Capacity, J/kg-K 400
400
Thermal Conductivity, W/m-K 100
28
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 26
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 23
27
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 48
44
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
65
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 660
120
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 17 to 22
13
Strength to Weight: Bending, points 17 to 20
14
Thermal Diffusivity, mm2/s 32
8.3
Thermal Shock Resistance, points 16 to 20
14

Alloy Composition


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Aluminum (Al), % 0.5 to 2.0
0 to 0.8
Copper (Cu), % 57 to 60
79 to 85.5
Iron (Fe), % 0 to 0.35
0
Lead (Pb), % 0 to 0.5
0 to 1.0
Manganese (Mn), % 2.0 to 3.5
0
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 0.5 to 1.5
2.5 to 4.0
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 31.1 to 40
12 to 16
Residuals, % 0 to 0.5
0 to 0.8