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SAE-AISI A8 Steel vs. C18200 Copper

SAE-AISI A8 steel belongs to the iron alloys classification, while C18200 copper belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A8 steel and the bottom bar is C18200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 74
44
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
310 to 530

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Melting Completion (Liquidus), °C 1480
1080
Melting Onset (Solidus), °C 1430
1070
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 37
320
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
80
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
81

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
31
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 2.3
2.6
Embodied Energy, MJ/kg 31
41
Embodied Water, L/kg 73
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 25 to 68
9.6 to 16
Strength to Weight: Bending, points 22 to 44
11 to 16
Thermal Diffusivity, mm2/s 9.9
93
Thermal Shock Resistance, points 22 to 62
11 to 18

Alloy Composition

Carbon (C), % 0.5 to 0.6
0
Chromium (Cr), % 4.8 to 5.5
0.6 to 1.2
Copper (Cu), % 0 to 0.25
98.6 to 99.4
Iron (Fe), % 88.5 to 91.9
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 1.2 to 1.7
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.75 to 1.1
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 1.0 to 1.5
0