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C55181 Copper vs. ACI-ASTM CK20 Steel

C55181 copper belongs to the copper alloys classification, while ACI-ASTM CK20 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C55181 copper and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 200
530

Thermal Properties

Latent Heat of Fusion, J/g 190
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 790
1400
Melting Onset (Solidus), °C 710
1430
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 28
25
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 2.4
4.4
Embodied Energy, MJ/kg 38
62
Embodied Water, L/kg 290
190

Common Calculations

Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 6.5
19
Strength to Weight: Bending, points 8.9
19
Thermal Shock Resistance, points 8.2
13

Alloy Composition

Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
23 to 27
Copper (Cu), % 92.4 to 93
0
Iron (Fe), % 0
46.7 to 58
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 7.0 to 7.5
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Residuals, % 0 to 0.15
0