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C81500 Copper vs. C68400 Brass

Both C81500 copper and C68400 brass are copper alloys. They have 62% of their average alloy composition in common. There are 29 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 C81500 copper and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
150
Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 17
18
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 44
41
Tensile Strength: Ultimate (UTS), MPa 350
540
Tensile Strength: Yield (Proof), MPa 280
310

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
840
Melting Onset (Solidus), °C 1080
820
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 320
66
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
87
Electrical Conductivity: Equal Weight (Specific), % IACS 83
99

Otherwise Unclassified Properties

Base Metal Price, % relative 31
23
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
81
Resilience: Unit (Modulus of Resilience), kJ/m3 330
460
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 11
19
Strength to Weight: Bending, points 12
19
Thermal Diffusivity, mm2/s 91
21
Thermal Shock Resistance, points 12
18

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
59 to 64
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 0 to 0.020
0 to 0.090
Manganese (Mn), % 0
0.2 to 1.5
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0 to 0.15
1.5 to 2.5
Tin (Sn), % 0 to 0.1
0 to 0.5
Zinc (Zn), % 0 to 0.1
28.6 to 39.3
Residuals, % 0 to 0.5
0 to 0.5