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C31400 Bronze vs. C87200 Bronze

Both C31400 bronze and C87200 bronze are copper alloys. They have a moderately high 92% 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 C87200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 6.8 to 29
30
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 270 to 420
380
Tensile Strength: Yield (Proof), MPa 78 to 310
170

Thermal Properties

Latent Heat of Fusion, J/g 200
260
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 1040
970
Melting Onset (Solidus), °C 1010
860
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 180
28
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 43
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
29
Density, g/cm3 8.8
8.6
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
93
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
130
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
12
Strength to Weight: Bending, points 11 to 14
14
Thermal Diffusivity, mm2/s 54
8.0
Thermal Shock Resistance, points 9.6 to 15
14

Alloy Composition


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Aluminum (Al), % 0
0 to 1.5
Copper (Cu), % 87.5 to 90.5
89 to 99
Iron (Fe), % 0 to 0.1
0 to 2.5
Lead (Pb), % 1.3 to 2.5
0 to 0.5
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.7
0
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0
1.0 to 5.0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 5.8 to 11.2
0 to 5.0
Residuals, % 0 to 0.4
0