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C31400 Bronze vs. C87400 Brass

Both C31400 bronze and C87400 brass are copper alloys. They have a moderately high 91% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C31400 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, % 6.8 to 29
21
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 270 to 420
390
Tensile Strength: Yield (Proof), MPa 78 to 310
160

Thermal Properties

Latent Heat of Fusion, J/g 200
250
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 1040
920
Melting Onset (Solidus), °C 1010
820
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 180
28
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 43
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 29
27
Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
44
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
65
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
120
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 8.7 to 13
13
Strength to Weight: Bending, points 11 to 14
14
Thermal Diffusivity, mm2/s 54
8.3
Thermal Shock Resistance, points 9.6 to 15
14

Alloy Composition


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Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 87.5 to 90.5
79 to 85.5
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 1.3 to 2.5
0 to 1.0
Nickel (Ni), % 0 to 0.7
0
Silicon (Si), % 0
2.5 to 4.0
Zinc (Zn), % 5.8 to 11.2
12 to 16
Residuals, % 0 to 0.4
0 to 0.8