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C21000 Brass vs. C96800 Copper

Both C21000 brass and C96800 copper are copper alloys. They have 89% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C21000 brass and the bottom bar is C96800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 2.9 to 50
3.4
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
46
Tensile Strength: Ultimate (UTS), MPa 240 to 450
1010
Tensile Strength: Yield (Proof), MPa 69 to 440
860

Thermal Properties

Latent Heat of Fusion, J/g 200
220
Maximum Temperature: Mechanical, °C 190
220
Melting Completion (Liquidus), °C 1070
1120
Melting Onset (Solidus), °C 1050
1060
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 230
52
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
10
Electrical Conductivity: Equal Weight (Specific), % IACS 57
10

Otherwise Unclassified Properties

Base Metal Price, % relative 30
34
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 2.6
3.4
Embodied Energy, MJ/kg 42
52
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
33
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
3000
Stiffness to Weight: Axial, points 7.2
7.6
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.4 to 14
32
Strength to Weight: Bending, points 9.6 to 15
25
Thermal Diffusivity, mm2/s 69
15
Thermal Shock Resistance, points 8.1 to 15
35

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.020
Copper (Cu), % 94 to 96
87.1 to 90.5
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.030
0 to 0.0050
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0
9.5 to 10.5
Phosphorus (P), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.0025
Zinc (Zn), % 3.7 to 6.0
0 to 1.0
Residuals, % 0
0 to 0.5