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CC380H Copper-nickel vs. C85400 Brass

Both CC380H copper-nickel and C85400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 69% of their average alloy composition in common.

For each property being compared, the top bar is CC380H copper-nickel and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
55
Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 26
23
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 47
40
Tensile Strength: Ultimate (UTS), MPa 310
220
Tensile Strength: Yield (Proof), MPa 120
85

Thermal Properties

Latent Heat of Fusion, J/g 220
180
Maximum Temperature: Mechanical, °C 220
130
Melting Completion (Liquidus), °C 1130
940
Melting Onset (Solidus), °C 1080
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 46
89
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
20
Electrical Conductivity: Equal Weight (Specific), % IACS 11
22

Otherwise Unclassified Properties

Base Metal Price, % relative 36
25
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 3.8
2.8
Embodied Energy, MJ/kg 58
46
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
40
Resilience: Unit (Modulus of Resilience), kJ/m3 59
35
Stiffness to Weight: Axial, points 7.8
7.0
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 9.8
7.5
Strength to Weight: Bending, points 12
9.9
Thermal Diffusivity, mm2/s 13
28
Thermal Shock Resistance, points 11
7.6

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.35
Copper (Cu), % 84.5 to 89
65 to 70
Iron (Fe), % 1.0 to 1.8
0 to 0.7
Lead (Pb), % 0 to 0.030
1.5 to 3.8
Manganese (Mn), % 1.0 to 1.5
0
Nickel (Ni), % 9.0 to 11
0 to 1.0
Niobium (Nb), % 0 to 1.0
0
Silicon (Si), % 0 to 0.1
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0 to 0.5
24 to 32
Residuals, % 0
0 to 1.1