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ACI-ASTM CG12 Steel vs. C18200 Copper

ACI-ASTM CG12 steel belongs to the iron alloys classification, while C18200 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG12 steel and the bottom bar is C18200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
11 to 40
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
44
Tensile Strength: Ultimate (UTS), MPa 550
310 to 530
Tensile Strength: Yield (Proof), MPa 220
97 to 450

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1040
200
Melting Completion (Liquidus), °C 1410
1080
Melting Onset (Solidus), °C 1370
1070
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
320
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
80
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
81

Otherwise Unclassified Properties

Base Metal Price, % relative 18
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 48
41
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
43 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 120
40 to 860
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 20
9.6 to 16
Strength to Weight: Bending, points 19
11 to 16
Thermal Diffusivity, mm2/s 4.0
93
Thermal Shock Resistance, points 12
11 to 18

Alloy Composition

Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 20 to 23
0.6 to 1.2
Copper (Cu), % 0
98.6 to 99.4
Iron (Fe), % 60.3 to 70
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 10 to 13
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.040
0