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C21000 Brass vs. CC381H Copper-nickel

Both C21000 brass and CC381H copper-nickel are copper alloys. They have 67% of their average alloy composition in common. There are 28 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 C21000 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, % 2.9 to 50
20
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
52
Tensile Strength: Ultimate (UTS), MPa 240 to 450
380
Tensile Strength: Yield (Proof), MPa 69 to 440
140

Thermal Properties

Latent Heat of Fusion, J/g 200
240
Maximum Temperature: Mechanical, °C 190
260
Melting Completion (Liquidus), °C 1070
1180
Melting Onset (Solidus), °C 1050
1120
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 230
30
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 57
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
40
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 2.6
5.0
Embodied Energy, MJ/kg 42
73
Embodied Water, L/kg 310
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
60
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
68
Stiffness to Weight: Axial, points 7.2
8.6
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.4 to 14
12
Strength to Weight: Bending, points 9.6 to 15
13
Thermal Diffusivity, mm2/s 69
8.4
Thermal Shock Resistance, points 8.1 to 15
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 94 to 96
64.5 to 69.9
Iron (Fe), % 0 to 0.050
0.5 to 1.5
Lead (Pb), % 0 to 0.030
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), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 3.7 to 6.0
0 to 0.5
Residuals, % 0 to 0.2
0