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C70400 Copper-nickel vs. C84200 Brass

Both C70400 copper-nickel and C84200 brass are copper alloys. They have 81% of their average alloy composition in common. There are 26 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 C70400 copper-nickel and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 45
40
Tensile Strength: Ultimate (UTS), MPa 300 to 310
250
Tensile Strength: Yield (Proof), MPa 95 to 230
120

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 210
150
Melting Completion (Liquidus), °C 1120
990
Melting Onset (Solidus), °C 1060
840
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 64
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
16
Electrical Conductivity: Equal Weight (Specific), % IACS 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 32
30
Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 3.0
3.1
Embodied Energy, MJ/kg 47
51
Embodied Water, L/kg 300
350

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 38 to 220
72
Stiffness to Weight: Axial, points 7.5
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 9.3 to 9.8
8.2
Strength to Weight: Bending, points 11 to 12
10
Thermal Diffusivity, mm2/s 18
23
Thermal Shock Resistance, points 10 to 11
9.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 89.8 to 93.6
78 to 82
Iron (Fe), % 1.3 to 1.7
0 to 0.4
Lead (Pb), % 0 to 0.050
2.0 to 3.0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 4.8 to 6.2
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0 to 1.0
10 to 16
Residuals, % 0
0 to 0.7