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C81500 Copper vs. C85900 Brass

Both C81500 copper and C85900 brass are copper alloys. They have 61% of their average alloy composition in common.

For each property being compared, the top bar is C81500 copper and the bottom bar is C85900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
85
Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 17
30
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 350
460
Tensile Strength: Yield (Proof), MPa 280
190

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
830
Melting Onset (Solidus), °C 1080
790
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 320
89
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
25
Electrical Conductivity: Equal Weight (Specific), % IACS 83
28

Otherwise Unclassified Properties

Base Metal Price, % relative 31
24
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 41
49
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
110
Resilience: Unit (Modulus of Resilience), kJ/m3 330
170
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 11
16
Strength to Weight: Bending, points 12
17
Thermal Diffusivity, mm2/s 91
29
Thermal Shock Resistance, points 12
16

Alloy Composition

Aluminum (Al), % 0 to 0.1
0.1 to 0.6
Antimony (Sb), % 0
0 to 0.2
Boron (B), % 0
0 to 0.2
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
58 to 62
Iron (Fe), % 0 to 0.1
0 to 0.5
Lead (Pb), % 0 to 0.020
0 to 0.090
Manganese (Mn), % 0
0 to 0.010
Nickel (Ni), % 0
0 to 1.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.15
0 to 0.25
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0 to 0.1
0 to 1.5
Zinc (Zn), % 0 to 0.1
31 to 41
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0 to 0.5
0 to 0.7