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C72700 Copper-nickel vs. C84200 Brass

Both C72700 copper-nickel and C84200 brass are copper alloys. They have 86% of their average alloy composition in common. There are 28 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 C72700 copper-nickel and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 4.0 to 36
15
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
250
Tensile Strength: Yield (Proof), MPa 580 to 1060
120

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1100
990
Melting Onset (Solidus), °C 930
840
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 54
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
16
Electrical Conductivity: Equal Weight (Specific), % IACS 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
30
Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 4.0
3.1
Embodied Energy, MJ/kg 62
51
Embodied Water, L/kg 350
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
31
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
72
Stiffness to Weight: Axial, points 7.4
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 14 to 34
8.2
Strength to Weight: Bending, points 15 to 26
10
Thermal Diffusivity, mm2/s 16
23
Thermal Shock Resistance, points 16 to 38
9.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 82.1 to 86
78 to 82
Iron (Fe), % 0 to 0.5
0 to 0.4
Lead (Pb), % 0 to 0.020
2.0 to 3.0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0
Nickel (Ni), % 8.5 to 9.5
0 to 0.8
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 5.5 to 6.5
4.0 to 6.0
Zinc (Zn), % 0 to 0.5
10 to 16
Residuals, % 0
0 to 0.7