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SAE-AISI P6 Steel vs. ZC63A Magnesium

SAE-AISI P6 steel belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is SAE-AISI P6 steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
48
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
19
Tensile Strength: Ultimate (UTS), MPa 630 to 1930
220

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Melting Completion (Liquidus), °C 1460
550
Melting Onset (Solidus), °C 1420
470
Specific Heat Capacity, J/kg-K 470
950
Thermal Conductivity, W/m-K 43
120
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
32
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
140

Otherwise Unclassified Properties

Base Metal Price, % relative 4.6
13
Density, g/cm3 7.9
2.1
Embodied Carbon, kg CO2/kg material 1.8
22
Embodied Energy, MJ/kg 24
150
Embodied Water, L/kg 59
920

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
58
Strength to Weight: Axial, points 22 to 68
29
Strength to Weight: Bending, points 21 to 44
38
Thermal Diffusivity, mm2/s 11
58
Thermal Shock Resistance, points 21 to 63
12

Alloy Composition

Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 1.3 to 1.8
0
Copper (Cu), % 0 to 0.25
2.4 to 3.0
Iron (Fe), % 92.9 to 95
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0.35 to 0.7
0.25 to 0.75
Nickel (Ni), % 3.3 to 3.8
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.1 to 0.4
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3