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C69400 Brass vs. CC381H Copper-nickel

Both C69400 brass and CC381H copper-nickel are copper alloys. 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 C69400 brass and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Elongation at Break, % 17
20
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
52
Tensile Strength: Ultimate (UTS), MPa 570
380
Tensile Strength: Yield (Proof), MPa 270
140

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Maximum Temperature: Mechanical, °C 170
260
Melting Completion (Liquidus), °C 920
1180
Melting Onset (Solidus), °C 820
1120
Specific Heat Capacity, J/kg-K 410
410
Thermal Conductivity, W/m-K 26
30
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 27
40
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.7
5.0
Embodied Energy, MJ/kg 44
73
Embodied Water, L/kg 300
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
60
Resilience: Unit (Modulus of Resilience), kJ/m3 340
68
Stiffness to Weight: Axial, points 7.4
8.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19
12
Strength to Weight: Bending, points 18
13
Thermal Diffusivity, mm2/s 7.7
8.4
Thermal Shock Resistance, points 20
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 80 to 83
64.5 to 69.9
Iron (Fe), % 0 to 0.2
0.5 to 1.5
Lead (Pb), % 0 to 0.3
0 to 0.030
Manganese (Mn), % 0
0.6 to 1.2
Nickel (Ni), % 0
29 to 31
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 3.5 to 4.5
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 11.5 to 16.5
0 to 0.5
Residuals, % 0 to 0.5
0