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C18700 Copper vs. C85800 Brass

Both C18700 copper and C85800 brass are copper alloys. They have 64% 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 C18700 copper and the bottom bar is C85800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 9.0 to 9.6
15
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 290 to 330
380
Tensile Strength: Yield (Proof), MPa 230 to 250
210

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1080
900
Melting Onset (Solidus), °C 950
870
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 380
84
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
20
Electrical Conductivity: Equal Weight (Specific), % IACS 99
22

Otherwise Unclassified Properties

Base Metal Price, % relative 30
24
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
48
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
210
Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.0 to 10
13
Strength to Weight: Bending, points 11 to 12
15
Thermal Diffusivity, mm2/s 110
27
Thermal Shock Resistance, points 10 to 12
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.55
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 98 to 99.2
57 to 69
Iron (Fe), % 0
0 to 0.5
Lead (Pb), % 0.8 to 1.5
0 to 1.5
Manganese (Mn), % 0
0 to 0.25
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.25
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 0
31 to 41
Residuals, % 0
0 to 1.3