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C38500 Bronze vs. C71500 Copper-nickel

Both C38500 bronze and C71500 copper-nickel are copper alloys. They have 58% 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 C38500 bronze and the bottom bar is C71500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
140
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 37
52
Tensile Strength: Ultimate (UTS), MPa 370
380 to 620

Thermal Properties

Latent Heat of Fusion, J/g 160
230
Maximum Temperature: Mechanical, °C 110
260
Melting Completion (Liquidus), °C 890
1240
Melting Onset (Solidus), °C 880
1170
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
4.6
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

Stiffness to Weight: Axial, points 7.0
8.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
12 to 19
Strength to Weight: Bending, points 14
13 to 18
Thermal Diffusivity, mm2/s 40
7.7
Thermal Shock Resistance, points 12
12 to 20

Alloy Composition

Copper (Cu), % 55 to 59
63.5 to 70.6
Iron (Fe), % 0 to 0.35
0.4 to 1.0
Lead (Pb), % 2.5 to 3.5
0 to 0.050
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
29 to 33
Zinc (Zn), % 36.7 to 42.5
0 to 1.0
Residuals, % 0
0 to 0.5