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CR019A Copper vs. C69430 Brass

Both CR019A copper and C69430 brass are copper alloys. They have 82% 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 CR019A copper and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
17
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
42
Tensile Strength: Ultimate (UTS), MPa 220
570
Tensile Strength: Yield (Proof), MPa 130
280

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1090
920
Melting Onset (Solidus), °C 1040
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 390
26
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 100
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 35
27
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 42
44
Embodied Water, L/kg 390
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
80
Resilience: Unit (Modulus of Resilience), kJ/m3 76
340
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.8
19
Strength to Weight: Bending, points 9.0
18
Thermal Diffusivity, mm2/s 110
7.7
Thermal Shock Resistance, points 7.8
20

Alloy Composition


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Arsenic (As), % 0
0.030 to 0.060
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.874 to 99.92
80 to 83
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Silicon (Si), % 0
3.5 to 4.5
Silver (Ag), % 0.080 to 0.12
0
Zinc (Zn), % 0
11.4 to 16.5
Residuals, % 0
0 to 0.5