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CR022A Copper vs. CC761S Brass

Both CR022A copper and CC761S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is CR022A copper and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
8.7
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
42
Tensile Strength: Ultimate (UTS), MPa 230
540
Tensile Strength: Yield (Proof), MPa 140
340

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1090
960
Melting Onset (Solidus), °C 1040
910
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 380
27
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
40
Electrical Conductivity: Equal Weight (Specific), % IACS 100
43

Otherwise Unclassified Properties

Base Metal Price, % relative 31
27
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
45
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
41
Resilience: Unit (Modulus of Resilience), kJ/m3 83
530
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.1
18
Strength to Weight: Bending, points 9.3
18
Thermal Diffusivity, mm2/s 110
8.0
Thermal Shock Resistance, points 8.1
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0 to 0.00040
0 to 0.050
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Cadmium (Cd), % 0 to 0.00010
0
Copper (Cu), % 99.99 to 99.999
78 to 83
Iron (Fe), % 0 to 0.0010
0 to 0.6
Lead (Pb), % 0 to 0.00050
0 to 0.8
Manganese (Mn), % 0 to 0.00050
0 to 0.2
Nickel (Ni), % 0 to 0.0010
0 to 1.0
Phosphorus (P), % 0.0010 to 0.0060
0 to 0.030
Selenium (Se), % 0 to 0.00020
0
Silicon (Si), % 0
3.0 to 5.0
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 to 0.3
Zinc (Zn), % 0 to 0.00010
8.9 to 19