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C31400 Bronze vs. C27400 Brass

Both C31400 bronze and C27400 brass are copper alloys. They have 71% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C31400 bronze and the bottom bar is C27400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 270 to 420
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 200
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 1040
920
Melting Onset (Solidus), °C 1010
870
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 180
120
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
28
Electrical Conductivity: Equal Weight (Specific), % IACS 43
31

Otherwise Unclassified Properties

Base Metal Price, % relative 29
23
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 310
320

Common Calculations

Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 8.7 to 13
13 to 23
Strength to Weight: Bending, points 11 to 14
14 to 21
Thermal Diffusivity, mm2/s 54
37
Thermal Shock Resistance, points 9.6 to 15
12 to 22

Alloy Composition


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Copper (Cu), % 87.5 to 90.5
61 to 64
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 1.3 to 2.5
0 to 0.050
Nickel (Ni), % 0 to 0.7
0
Zinc (Zn), % 5.8 to 11.2
35.6 to 39
Residuals, % 0 to 0.4
0 to 0.3

Comparable Variants