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C18100 Copper vs. ACI-ASTM CF20 Steel

C18100 copper belongs to the copper alloys classification, while ACI-ASTM CF20 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C18100 copper and the bottom bar is ACI-ASTM CF20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 8.3
50
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 47
77
Tensile Strength: Ultimate (UTS), MPa 510
530
Tensile Strength: Yield (Proof), MPa 460
250

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
970
Melting Completion (Liquidus), °C 1080
1420
Melting Onset (Solidus), °C 1020
1410
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 320
16
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 81
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
16
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 43
44
Embodied Water, L/kg 310
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
220
Resilience: Unit (Modulus of Resilience), kJ/m3 900
160
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 94
4.3
Thermal Shock Resistance, points 18
11

Alloy Composition

Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0.4 to 1.2
18 to 21
Copper (Cu), % 98.7 to 99.49
0
Iron (Fe), % 0
64.2 to 74
Magnesium (Mg), % 0.030 to 0.060
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
8.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0 to 0.5
0