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ISO-WD32260 Magnesium vs. ACI-ASTM CF10SMnN Steel

ISO-WD32260 magnesium belongs to the magnesium alloys classification, while ACI-ASTM CF10SMnN steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 ISO-WD32260 magnesium and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 4.5 to 6.0
34
Fatigue Strength, MPa 150 to 190
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
75
Tensile Strength: Ultimate (UTS), MPa 330 to 340
660
Tensile Strength: Yield (Proof), MPa 230 to 250
330

Thermal Properties

Latent Heat of Fusion, J/g 330
340
Maximum Temperature: Mechanical, °C 120
900
Melting Completion (Liquidus), °C 600
1360
Melting Onset (Solidus), °C 520
1310
Specific Heat Capacity, J/kg-K 970
500
Thermal Expansion, µm/m-K 27
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 1.9
7.5
Embodied Carbon, kg CO2/kg material 23
3.1
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 940
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 19
180
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 700
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
26
Strength to Weight: Axial, points 48 to 51
24
Strength to Weight: Bending, points 56 to 58
22
Thermal Shock Resistance, points 19 to 20
15

Alloy Composition

Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 0
59.1 to 65.4
Magnesium (Mg), % 92.7 to 94.8
0
Manganese (Mn), % 0
7.0 to 9.0
Nickel (Ni), % 0
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
Zinc (Zn), % 4.8 to 6.2
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0