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CR009A Copper vs. C84800 Brass

Both CR009A copper and C84800 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is CR009A copper and the bottom bar is C84800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 15
18
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
39
Tensile Strength: Ultimate (UTS), MPa 230
230
Tensile Strength: Yield (Proof), MPa 140
100

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1090
950
Melting Onset (Solidus), °C 1040
830
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 380
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
16
Electrical Conductivity: Equal Weight (Specific), % IACS 100
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
27
Density, g/cm3 9.0
8.6
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
34
Resilience: Unit (Modulus of Resilience), kJ/m3 83
53
Stiffness to Weight: Axial, points 7.2
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.1
7.3
Strength to Weight: Bending, points 9.3
9.6
Thermal Diffusivity, mm2/s 110
23
Thermal Shock Resistance, points 8.1
8.2

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0 to 0.00040
0 to 0.25
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 100
75 to 77
Iron (Fe), % 0 to 0.0010
0 to 0.4
Lead (Pb), % 0 to 0.00050
5.5 to 7.0
Manganese (Mn), % 0 to 0.00050
0
Nickel (Ni), % 0 to 0.0010
0 to 1.0
Phosphorus (P), % 0 to 0.0030
0 to 1.5
Selenium (Se), % 0 to 0.00020
0
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0 to 0.0025
0
Sulfur (S), % 0 to 0.0015
0 to 0.080
Tellurium (Te), % 0 to 0.00020
0
Tin (Sn), % 0 to 0.00020
2.0 to 3.0
Zinc (Zn), % 0 to 0.00010
13 to 17
Residuals, % 0
0 to 0.7