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EZ33A Magnesium vs. ACI-ASTM CF10SMnN Steel

EZ33A magnesium belongs to the magnesium alloys classification, while ACI-ASTM CF10SMnN steel belongs to the iron alloys. There are 26 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 EZ33A magnesium and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
190
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.6
34
Fatigue Strength, MPa 70
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Tensile Strength: Ultimate (UTS), MPa 150
660
Tensile Strength: Yield (Proof), MPa 100
330

Thermal Properties

Latent Heat of Fusion, J/g 330
340
Maximum Temperature: Mechanical, °C 250
900
Melting Completion (Liquidus), °C 640
1360
Melting Onset (Solidus), °C 570
1310
Specific Heat Capacity, J/kg-K 970
500
Thermal Expansion, µm/m-K 27
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 1.9
7.5
Embodied Carbon, kg CO2/kg material 25
3.1
Embodied Energy, MJ/kg 190
45
Embodied Water, L/kg 930
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6
180
Resilience: Unit (Modulus of Resilience), kJ/m3 120
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
26
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 33
22
Thermal Shock Resistance, points 9.2
15

Alloy Composition

Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
59.1 to 65.4
Magnesium (Mg), % 91.5 to 95
0
Manganese (Mn), % 0
7.0 to 9.0
Nickel (Ni), % 0 to 0.010
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0
3.5 to 4.5
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.1
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0 to 0.3
0