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CC381H Copper-nickel vs. C83400 Brass

Both CC381H copper-nickel and C83400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common. There are 28 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 CC381H copper-nickel and the bottom bar is C83400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Elongation at Break, % 20
30
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 52
42
Tensile Strength: Ultimate (UTS), MPa 380
240
Tensile Strength: Yield (Proof), MPa 140
69

Thermal Properties

Latent Heat of Fusion, J/g 240
200
Maximum Temperature: Mechanical, °C 260
180
Melting Completion (Liquidus), °C 1180
1040
Melting Onset (Solidus), °C 1120
1020
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 30
190
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
44
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
46

Otherwise Unclassified Properties

Base Metal Price, % relative 40
29
Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 5.0
2.7
Embodied Energy, MJ/kg 73
43
Embodied Water, L/kg 280
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
55
Resilience: Unit (Modulus of Resilience), kJ/m3 68
21
Stiffness to Weight: Axial, points 8.6
7.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 12
7.7
Strength to Weight: Bending, points 13
9.9
Thermal Diffusivity, mm2/s 8.4
57
Thermal Shock Resistance, points 13
8.4

Alloy Composition


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Aluminum (Al), % 0 to 0.010
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 64.5 to 69.9
88 to 92
Iron (Fe), % 0.5 to 1.5
0 to 0.25
Lead (Pb), % 0 to 0.030
0 to 0.5
Manganese (Mn), % 0.6 to 1.2
0
Nickel (Ni), % 29 to 31
0 to 1.0
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0 to 0.010
0 to 0.080
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.5
8.0 to 12
Residuals, % 0
0 to 0.7