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C71640 Copper-nickel vs. C38000 Brass

Both C71640 copper-nickel and C38000 brass 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 (5, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
100
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 52
39
Tensile Strength: Ultimate (UTS), MPa 490 to 630
380
Tensile Strength: Yield (Proof), MPa 190 to 460
120

Thermal Properties

Latent Heat of Fusion, J/g 240
170
Maximum Temperature: Mechanical, °C 260
110
Melting Completion (Liquidus), °C 1180
800
Melting Onset (Solidus), °C 1120
760
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 29
110
Thermal Expansion, µm/m-K 15
21

Otherwise Unclassified Properties

Base Metal Price, % relative 40
22
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 5.0
2.7
Embodied Energy, MJ/kg 73
46
Embodied Water, L/kg 280
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 750
74
Stiffness to Weight: Axial, points 8.7
7.1
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 20
13
Strength to Weight: Bending, points 16 to 18
14
Thermal Diffusivity, mm2/s 8.2
37
Thermal Shock Resistance, points 16 to 21
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 61.7 to 67.8
55 to 60
Iron (Fe), % 1.7 to 2.3
0 to 0.35
Lead (Pb), % 0 to 0.050
1.5 to 2.5
Manganese (Mn), % 1.5 to 2.5
0
Nickel (Ni), % 29 to 32
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0 to 1.0
35.9 to 43.5
Residuals, % 0 to 0.5
0 to 0.5