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C31400 Bronze vs. C72800 Copper-nickel

Both C31400 bronze and C72800 copper-nickel are copper alloys. They have 82% of their average alloy composition in common. There are 29 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 C72800 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 6.8 to 29
3.9 to 23
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
44
Shear Strength, MPa 180 to 240
330 to 740
Tensile Strength: Ultimate (UTS), MPa 270 to 420
520 to 1270
Tensile Strength: Yield (Proof), MPa 78 to 310
250 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 1040
1080
Melting Onset (Solidus), °C 1010
920
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 180
55
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
11
Electrical Conductivity: Equal Weight (Specific), % IACS 43
11

Otherwise Unclassified Properties

Base Metal Price, % relative 29
38
Density, g/cm3 8.8
8.8
Embodied Carbon, kg CO2/kg material 2.6
4.4
Embodied Energy, MJ/kg 42
68
Embodied Water, L/kg 310
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
37 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
260 to 5650
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
17 to 40
Strength to Weight: Bending, points 11 to 14
16 to 30
Thermal Diffusivity, mm2/s 54
17
Thermal Shock Resistance, points 9.6 to 15
19 to 45

Alloy Composition


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Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.020
Bismuth (Bi), % 0
0 to 0.0010
Boron (B), % 0
0 to 0.0010
Copper (Cu), % 87.5 to 90.5
78.3 to 82.8
Iron (Fe), % 0 to 0.1
0 to 0.5
Lead (Pb), % 1.3 to 2.5
0 to 0.0050
Magnesium (Mg), % 0
0.0050 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0 to 0.7
9.5 to 10.5
Niobium (Nb), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.050
Sulfur (S), % 0
0 to 0.0025
Tin (Sn), % 0
7.5 to 8.5
Titanium (Ti), % 0
0 to 0.010
Zinc (Zn), % 5.8 to 11.2
0 to 1.0
Residuals, % 0 to 0.4
0 to 0.3

Comparable Variants