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ACI-ASTM CF10SMnN Steel vs. AZ31C Magnesium

ACI-ASTM CF10SMnN steel belongs to the iron alloys classification, while AZ31C magnesium belongs to the magnesium 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 ACI-ASTM CF10SMnN steel and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 34
12
Fatigue Strength, MPa 260
150
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
17
Tensile Strength: Ultimate (UTS), MPa 660
260
Tensile Strength: Yield (Proof), MPa 330
200

Thermal Properties

Latent Heat of Fusion, J/g 340
350
Maximum Temperature: Mechanical, °C 900
110
Melting Completion (Liquidus), °C 1360
600
Melting Onset (Solidus), °C 1310
550
Specific Heat Capacity, J/kg-K 500
990
Thermal Expansion, µm/m-K 16
26

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.5
1.7
Embodied Carbon, kg CO2/kg material 3.1
23
Embodied Energy, MJ/kg 45
160
Embodied Water, L/kg 150
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
28
Resilience: Unit (Modulus of Resilience), kJ/m3 280
440
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 26
70
Strength to Weight: Axial, points 24
42
Strength to Weight: Bending, points 22
53
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 59.1 to 65.4
0
Magnesium (Mg), % 0
93.4 to 97
Manganese (Mn), % 7.0 to 9.0
0.15 to 1.0
Nickel (Ni), % 8.0 to 9.0
0 to 0.030
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 3.5 to 4.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3