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C70700 Copper-nickel vs. C44300 Brass

Both C70700 copper-nickel and C44300 brass are copper alloys. They have 72% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is C44300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 46
41
Tensile Strength: Ultimate (UTS), MPa 320
350
Tensile Strength: Yield (Proof), MPa 110
120

Thermal Properties

Latent Heat of Fusion, J/g 220
180
Maximum Temperature: Mechanical, °C 220
140
Melting Completion (Liquidus), °C 1120
940
Melting Onset (Solidus), °C 1060
900
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 59
110
Thermal Expansion, µm/m-K 16
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
25
Electrical Conductivity: Equal Weight (Specific), % IACS 12
27

Otherwise Unclassified Properties

Base Metal Price, % relative 34
26
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 52
46
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 51
65
Stiffness to Weight: Axial, points 7.6
7.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10
12
Strength to Weight: Bending, points 12
13
Thermal Diffusivity, mm2/s 17
35
Thermal Shock Resistance, points 12
12

Alloy Composition


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Arsenic (As), % 0
0.020 to 0.060
Copper (Cu), % 88.5 to 90.5
70 to 73
Iron (Fe), % 0 to 0.050
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 9.5 to 10.5
0
Tin (Sn), % 0
0.9 to 1.2
Zinc (Zn), % 0
25.2 to 29.1
Residuals, % 0 to 0.5
0 to 0.4