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C38500 Bronze vs. C71580 Copper-nickel

Both C38500 bronze and C71580 copper-nickel are copper alloys. They have 57% 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 C38500 bronze and the bottom bar is C71580 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
140
Elongation at Break, % 17
40
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 37
51
Shear Strength, MPa 230
230
Tensile Strength: Ultimate (UTS), MPa 370
330
Tensile Strength: Yield (Proof), MPa 130
110

Thermal Properties

Latent Heat of Fusion, J/g 160
230
Maximum Temperature: Mechanical, °C 110
260
Melting Completion (Liquidus), °C 890
1180
Melting Onset (Solidus), °C 880
1120
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 120
39
Thermal Expansion, µm/m-K 21
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 31
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
41
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 2.6
5.1
Embodied Energy, MJ/kg 45
74
Embodied Water, L/kg 320
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
100
Resilience: Unit (Modulus of Resilience), kJ/m3 78
47
Stiffness to Weight: Axial, points 7.0
8.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
10
Strength to Weight: Bending, points 14
12
Thermal Diffusivity, mm2/s 40
11
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0
0 to 0.070
Copper (Cu), % 55 to 59
65.5 to 71
Iron (Fe), % 0 to 0.35
0 to 0.5
Lead (Pb), % 2.5 to 3.5
0 to 0.050
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 0
29 to 33
Zinc (Zn), % 36.7 to 42.5
0 to 0.050
Residuals, % 0
0 to 0.5