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ACI-ASTM CF20 Steel vs. CR011A Copper

ACI-ASTM CF20 steel belongs to the iron alloys classification, while CR011A copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF20 steel and the bottom bar is CR011A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 50
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 530
220
Tensile Strength: Yield (Proof), MPa 250
130

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 970
200
Melting Completion (Liquidus), °C 1420
1090
Melting Onset (Solidus), °C 1410
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
390
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 16
32
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.1
2.6
Embodied Energy, MJ/kg 44
42
Embodied Water, L/kg 150
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
29
Resilience: Unit (Modulus of Resilience), kJ/m3 160
76
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 19
6.8
Strength to Weight: Bending, points 19
9.0
Thermal Diffusivity, mm2/s 4.3
110
Thermal Shock Resistance, points 11
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
99.88 to 99.97
Iron (Fe), % 64.2 to 74
0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 8.0 to 11
0
Oxygen (O), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Silver (Ag), % 0
0.030 to 0.050
Sulfur (S), % 0 to 0.040
0