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CR011A Copper vs. CC764S Brass

Both CR011A copper and CC764S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 59% 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 CR011A copper and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
15
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
41
Tensile Strength: Ultimate (UTS), MPa 220
680
Tensile Strength: Yield (Proof), MPa 130
290

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
850
Melting Onset (Solidus), °C 1040
810
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 390
94
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
32
Electrical Conductivity: Equal Weight (Specific), % IACS 100
36

Otherwise Unclassified Properties

Base Metal Price, % relative 32
23
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 42
49
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
80
Resilience: Unit (Modulus of Resilience), kJ/m3 76
390
Stiffness to Weight: Axial, points 7.2
7.6
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 6.8
24
Strength to Weight: Bending, points 9.0
22
Thermal Diffusivity, mm2/s 110
30
Thermal Shock Resistance, points 7.8
22

Alloy Composition

Aluminum (Al), % 0
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.88 to 99.97
52 to 66
Iron (Fe), % 0
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0
0.3 to 4.0
Nickel (Ni), % 0
0 to 3.0
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 0.030 to 0.050
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
20.7 to 50.2