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C81500 Copper vs. C69400 Brass

Both C81500 copper and C69400 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 (2, in this case) are not shown.

For each property being compared, the top bar is C81500 copper and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 17
17
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
42
Tensile Strength: Ultimate (UTS), MPa 350
570
Tensile Strength: Yield (Proof), MPa 280
270

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 1080
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 320
26
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 83
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
27
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
44
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
80
Resilience: Unit (Modulus of Resilience), kJ/m3 330
340
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
19
Strength to Weight: Bending, points 12
18
Thermal Diffusivity, mm2/s 91
7.7
Thermal Shock Resistance, points 12
20

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
80 to 83
Iron (Fe), % 0 to 0.1
0 to 0.2
Lead (Pb), % 0 to 0.020
0 to 0.3
Silicon (Si), % 0 to 0.15
3.5 to 4.5
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
11.5 to 16.5
Residuals, % 0 to 0.5
0 to 0.5