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C81500 Copper vs. C66700 Brass

Both C81500 copper and C66700 brass are copper alloys. They have 70% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C81500 copper and the bottom bar is C66700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 17
2.0 to 58
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 44
41
Tensile Strength: Ultimate (UTS), MPa 350
340 to 690
Tensile Strength: Yield (Proof), MPa 280
100 to 640

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
140
Melting Completion (Liquidus), °C 1090
1090
Melting Onset (Solidus), °C 1080
1050
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 320
97
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
17
Electrical Conductivity: Equal Weight (Specific), % IACS 83
19

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
45
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
13 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 330
49 to 1900
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
11 to 23
Strength to Weight: Bending, points 12
13 to 21
Thermal Diffusivity, mm2/s 91
30
Thermal Shock Resistance, points 12
11 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
68.5 to 71.5
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.020
0 to 0.070
Manganese (Mn), % 0
0.8 to 1.5
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
26.3 to 30.7
Residuals, % 0 to 0.5
0 to 0.5