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ACI-ASTM CF20 Steel vs. C55284 Copper

ACI-ASTM CF20 steel belongs to the iron alloys classification, while C55284 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF20 steel and the bottom bar is C55284 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
38
Tensile Strength: Ultimate (UTS), MPa 530
180

Thermal Properties

Latent Heat of Fusion, J/g 300
180
Maximum Temperature: Mechanical, °C 970
200
Melting Completion (Liquidus), °C 1420
800
Melting Onset (Solidus), °C 1410
640
Specific Heat Capacity, J/kg-K 480
380
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.1
16
Embodied Energy, MJ/kg 44
260

Common Calculations

Stiffness to Weight: Axial, points 14
6.5
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 19
5.6
Strength to Weight: Bending, points 19
8.0
Thermal Shock Resistance, points 11
7.4

Alloy Composition

Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
79.2 to 80.7
Iron (Fe), % 64.2 to 74
0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
4.8 to 5.2
Silicon (Si), % 0 to 2.0
0
Silver (Ag), % 0
14.5 to 15.5
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.15