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C23000 Brass vs. CR021A Copper

Both C23000 brass and CR021A copper are copper alloys. They have 85% 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 C23000 brass and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 2.9 to 47
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 280 to 590
230
Tensile Strength: Yield (Proof), MPa 83 to 480
140

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1030
1090
Melting Onset (Solidus), °C 990
1040
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 160
380
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
98
Electrical Conductivity: Equal Weight (Specific), % IACS 39
99

Otherwise Unclassified Properties

Base Metal Price, % relative 28
31
Density, g/cm3 8.6
9.0
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 43
41
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.2 to 260
31
Resilience: Unit (Modulus of Resilience), kJ/m3 31 to 1040
83
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 8.9 to 19
7.1
Strength to Weight: Bending, points 11 to 18
9.3
Thermal Diffusivity, mm2/s 48
110
Thermal Shock Resistance, points 9.4 to 20
8.1

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 84 to 86
99.95 to 99.998
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.050
0 to 0.0050
Phosphorus (P), % 0
0.0020 to 0.0070
Silver (Ag), % 0
0 to 0.015
Zinc (Zn), % 13.7 to 16
0
Residuals, % 0 to 0.2
0