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C18700 Copper vs. ACI-ASTM CT15C Steel

C18700 copper belongs to the copper alloys classification, while ACI-ASTM CT15C steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.0 to 9.6
23
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
76
Tensile Strength: Ultimate (UTS), MPa 290 to 330
500
Tensile Strength: Yield (Proof), MPa 230 to 250
190

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1080
Melting Completion (Liquidus), °C 1080
1410
Melting Onset (Solidus), °C 950
1360
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 380
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 99
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
36
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 2.6
6.1
Embodied Energy, MJ/kg 41
88
Embodied Water, L/kg 310
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
90
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
93
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
17
Strength to Weight: Bending, points 11 to 12
17
Thermal Diffusivity, mm2/s 110
3.2
Thermal Shock Resistance, points 10 to 12
12

Alloy Composition

Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 98 to 99.2
0
Iron (Fe), % 0
40.3 to 49.2
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0.15 to 1.5
Nickel (Ni), % 0
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.15 to 1.5
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0