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C31400 Bronze vs. C85400 Brass

Both C31400 bronze and C85400 brass are copper alloys. They have 79% 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 C31400 bronze and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 6.8 to 29
23
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 270 to 420
220
Tensile Strength: Yield (Proof), MPa 78 to 310
85

Thermal Properties

Latent Heat of Fusion, J/g 200
180
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 1040
940
Melting Onset (Solidus), °C 1010
940
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 180
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
20
Electrical Conductivity: Equal Weight (Specific), % IACS 43
22

Otherwise Unclassified Properties

Base Metal Price, % relative 29
25
Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 42
46
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
40
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
35
Stiffness to Weight: Axial, points 7.1
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 8.7 to 13
7.5
Strength to Weight: Bending, points 11 to 14
9.9
Thermal Diffusivity, mm2/s 54
28
Thermal Shock Resistance, points 9.6 to 15
7.6

Alloy Composition


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Aluminum (Al), % 0
0 to 0.35
Copper (Cu), % 87.5 to 90.5
65 to 70
Iron (Fe), % 0 to 0.1
0 to 0.7
Lead (Pb), % 1.3 to 2.5
1.5 to 3.8
Nickel (Ni), % 0 to 0.7
0 to 1.0
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 5.8 to 11.2
24 to 32
Residuals, % 0 to 0.4
0 to 1.1