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CR022A Copper vs. C68800 Brass

Both CR022A copper and C68800 brass are copper alloys. They have 73% 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 CR022A copper and the bottom bar is C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
2.0 to 36
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
41
Tensile Strength: Ultimate (UTS), MPa 230
570 to 890
Tensile Strength: Yield (Proof), MPa 140
390 to 790

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1090
960
Melting Onset (Solidus), °C 1040
950
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 380
40
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
18
Electrical Conductivity: Equal Weight (Specific), % IACS 100
20

Otherwise Unclassified Properties

Base Metal Price, % relative 31
26
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
48
Embodied Water, L/kg 310
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
16 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 83
710 to 2860
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.1
19 to 30
Strength to Weight: Bending, points 9.3
19 to 25
Thermal Diffusivity, mm2/s 110
12
Thermal Shock Resistance, points 8.1
19 to 30

Alloy Composition


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Aluminum (Al), % 0
3.0 to 3.8
Antimony (Sb), % 0 to 0.00040
0
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Cadmium (Cd), % 0 to 0.00010
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 99.99 to 99.999
70.8 to 75.5
Iron (Fe), % 0 to 0.0010
0 to 0.2
Lead (Pb), % 0 to 0.00050
0 to 0.050
Manganese (Mn), % 0 to 0.00050
0
Nickel (Ni), % 0 to 0.0010
0
Phosphorus (P), % 0.0010 to 0.0060
0
Selenium (Se), % 0 to 0.00020
0
Silver (Ag), % 0 to 0.0025
0
Sulfur (S), % 0 to 0.0015
0
Tellurium (Te), % 0 to 0.00020
0
Tin (Sn), % 0 to 0.00020
0
Zinc (Zn), % 0 to 0.00010
21.3 to 24.1
Residuals, % 0
0 to 0.5