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CC761S Brass vs. CR012A Copper

Both CC761S brass and CR012A copper 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 CC761S brass and the bottom bar is CR012A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 8.7
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 540
220
Tensile Strength: Yield (Proof), MPa 340
130

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 27
33
Density, g/cm3 8.3
9.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
42
Embodied Water, L/kg 300
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
29
Resilience: Unit (Modulus of Resilience), kJ/m3 530
76
Stiffness to Weight: Axial, points 7.4
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 18
6.8
Strength to Weight: Bending, points 18
9.0
Thermal Diffusivity, mm2/s 8.0
110
Thermal Shock Resistance, points 19
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.050
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 78 to 83
99.85 to 99.94
Iron (Fe), % 0 to 0.6
0
Lead (Pb), % 0 to 0.8
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 1.0
0
Oxygen (O), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 3.0 to 5.0
0
Silver (Ag), % 0
0.060 to 0.080
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 8.9 to 19
0