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ACI-ASTM CF8C Steel vs. C70260 Copper

ACI-ASTM CF8C steel belongs to the iron alloys classification, while C70260 copper belongs to the copper 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 ACI-ASTM CF8C steel and the bottom bar is C70260 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
9.5 to 19
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
44
Tensile Strength: Ultimate (UTS), MPa 530
520 to 760
Tensile Strength: Yield (Proof), MPa 260
410 to 650

Thermal Properties

Latent Heat of Fusion, J/g 300
220
Maximum Temperature: Mechanical, °C 980
200
Melting Completion (Liquidus), °C 1420
1060
Melting Onset (Solidus), °C 1430
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
160
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
40 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
40 to 51

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.7
2.7
Embodied Energy, MJ/kg 53
43
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
46 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 170
710 to 1810
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 19
16 to 24
Strength to Weight: Bending, points 19
16 to 21
Thermal Diffusivity, mm2/s 4.3
45
Thermal Shock Resistance, points 11
18 to 27

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
95.8 to 98.8
Iron (Fe), % 61.8 to 73
0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 12
1.0 to 3.0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 2.0
0.2 to 0.7
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.5