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CR012A Copper vs. ACI-ASTM CK20 Steel

CR012A copper belongs to the copper alloys classification, while ACI-ASTM CK20 steel belongs to the iron 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 CR012A copper and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
37
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
78
Tensile Strength: Ultimate (UTS), MPa 220
530
Tensile Strength: Yield (Proof), MPa 130
260

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1090
1400
Melting Onset (Solidus), °C 1040
1430
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 390
14
Thermal Expansion, µm/m-K 17
15

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 33
25
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.7
4.4
Embodied Energy, MJ/kg 42
62
Embodied Water, L/kg 360
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
160
Resilience: Unit (Modulus of Resilience), kJ/m3 76
170
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 6.8
19
Strength to Weight: Bending, points 9.0
19
Thermal Diffusivity, mm2/s 110
3.7
Thermal Shock Resistance, points 7.8
13

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
23 to 27
Copper (Cu), % 99.85 to 99.94
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
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.040