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C81500 Copper vs. C18700 Copper

Both C81500 copper and C18700 copper are copper alloys. They have a very high 99% 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 C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 17
9.0 to 9.6
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 44
43
Tensile Strength: Ultimate (UTS), MPa 350
290 to 330
Tensile Strength: Yield (Proof), MPa 280
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 1090
1080
Melting Onset (Solidus), °C 1080
950
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 320
380
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
98
Electrical Conductivity: Equal Weight (Specific), % IACS 83
99

Otherwise Unclassified Properties

Base Metal Price, % relative 31
30
Density, g/cm3 8.9
9.0
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 41
41
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 330
240 to 280
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 11
9.0 to 10
Strength to Weight: Bending, points 12
11 to 12
Thermal Diffusivity, mm2/s 91
110
Thermal Shock Resistance, points 12
10 to 12

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
98 to 99.2
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.020
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
0
Residuals, % 0
0 to 0.5