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ACI-ASTM CF8 Steel vs. C15900 Copper

ACI-ASTM CF8 steel belongs to the iron alloys classification, while C15900 copper belongs to the copper 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 ACI-ASTM CF8 steel and the bottom bar is C15900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 55
6.5
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 540
720
Tensile Strength: Yield (Proof), MPa 260
240

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 980
200
Melting Completion (Liquidus), °C 1420
1080
Melting Onset (Solidus), °C 1430
1030
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
280
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
48
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
49

Otherwise Unclassified Properties

Base Metal Price, % relative 16
30
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 44
45
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
37
Resilience: Unit (Modulus of Resilience), kJ/m3 160
260
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 4.3
80
Thermal Shock Resistance, points 13
26

Alloy Composition

Aluminum (Al), % 0
0.76 to 0.84
Carbon (C), % 0 to 0.080
0.27 to 0.33
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
97.5 to 97.9
Iron (Fe), % 63.8 to 74
0 to 0.040
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 11
0
Oxygen (O), % 0
0.4 to 0.54
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0.66 to 0.74