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ASTM F15 Fe-Ni-Co vs. EZ33A Magnesium

ASTM F15 Fe-Ni-Co belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 ASTM F15 Fe-Ni-Co and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
44
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 520 to 880
150

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1450
570
Specific Heat Capacity, J/kg-K 460
970
Thermal Conductivity, W/m-K 17
100
Thermal Expansion, µm/m-K 6.0
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
24
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
110

Otherwise Unclassified Properties

Base Metal Price, % relative 49
25
Density, g/cm3 8.3
1.9
Embodied Carbon, kg CO2/kg material 5.2
25
Embodied Energy, MJ/kg 71
190
Embodied Water, L/kg 190
930

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
61
Strength to Weight: Axial, points 17 to 29
22
Strength to Weight: Bending, points 17 to 24
33
Thermal Diffusivity, mm2/s 4.5
54
Thermal Shock Resistance, points 32 to 55
9.2

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 0 to 0.2
0
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 50.3 to 56
0
Magnesium (Mg), % 0 to 0.1
91.5 to 95
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 28 to 30
0 to 0.010
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.1
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0 to 0.1
0.5 to 1.0
Residuals, % 0
0 to 0.3