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C84000 Brass vs. C70700 Copper-nickel

Both C84000 brass and C70700 copper-nickel are copper alloys. They have 87% of their average alloy composition in common. There are 29 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 C84000 brass and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
73
Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 27
39
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
46
Tensile Strength: Ultimate (UTS), MPa 250
320
Tensile Strength: Yield (Proof), MPa 140
110

Thermal Properties

Latent Heat of Fusion, J/g 190
220
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 1040
1120
Melting Onset (Solidus), °C 940
1060
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 72
59
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
11
Electrical Conductivity: Equal Weight (Specific), % IACS 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 30
34
Density, g/cm3 8.6
8.9
Embodied Carbon, kg CO2/kg material 3.0
3.4
Embodied Energy, MJ/kg 49
52
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
100
Resilience: Unit (Modulus of Resilience), kJ/m3 83
51
Stiffness to Weight: Axial, points 7.2
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 8.2
10
Strength to Weight: Bending, points 10
12
Thermal Diffusivity, mm2/s 22
17
Thermal Shock Resistance, points 9.0
12

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Copper (Cu), % 82 to 89
88.5 to 90.5
Iron (Fe), % 0 to 0.4
0 to 0.050
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.010
0 to 0.5
Nickel (Ni), % 0.5 to 2.0
9.5 to 10.5
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 2.0 to 4.0
0
Zinc (Zn), % 5.0 to 14
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0 to 0.5