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SAE-AISI M44 Steel vs. ZC63A Magnesium

SAE-AISI M44 steel belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, 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 M44 steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
48
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
19
Tensile Strength: Ultimate (UTS), MPa 870 to 2290
220

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1590
550
Melting Onset (Solidus), °C 1540
470
Specific Heat Capacity, J/kg-K 440
950
Thermal Conductivity, W/m-K 14
120
Thermal Expansion, µm/m-K 12
26

Otherwise Unclassified Properties

Base Metal Price, % relative 43
13
Density, g/cm3 8.4
2.1
Embodied Carbon, kg CO2/kg material 9.9
22
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 170
920

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
58
Strength to Weight: Axial, points 28 to 75
29
Strength to Weight: Bending, points 24 to 46
38
Thermal Diffusivity, mm2/s 3.7
58
Thermal Shock Resistance, points 27 to 70
12

Alloy Composition

Carbon (C), % 1.1 to 1.2
0
Chromium (Cr), % 4.0 to 4.8
0
Cobalt (Co), % 11 to 12.3
0
Copper (Cu), % 0 to 0.25
2.4 to 3.0
Iron (Fe), % 65.3 to 70.6
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0.2 to 0.4
0.25 to 0.75
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 0 to 0.3
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.3 to 0.55
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 5.0 to 5.8
0
Vanadium (V), % 1.9 to 2.2
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3