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ACI-ASTM CF16Fa Steel vs. ISO-WD32260 Magnesium

ACI-ASTM CF16Fa steel belongs to the iron alloys classification, while ISO-WD32260 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 CF16Fa steel and the bottom bar is ISO-WD32260 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
46
Elongation at Break, % 28
4.5 to 6.0
Fatigue Strength, MPa 170
150 to 190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
18
Tensile Strength: Ultimate (UTS), MPa 540
330 to 340
Tensile Strength: Yield (Proof), MPa 230
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 980
120
Melting Completion (Liquidus), °C 1420
600
Melting Onset (Solidus), °C 1370
520
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
140

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 3.3
23
Embodied Energy, MJ/kg 47
160
Embodied Water, L/kg 150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
14 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 140
560 to 700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 19
48 to 51
Strength to Weight: Bending, points 19
56 to 58
Thermal Diffusivity, mm2/s 4.2
63
Thermal Shock Resistance, points 12
19 to 20

Alloy Composition

Carbon (C), % 0 to 0.16
0
Chromium (Cr), % 18 to 21
0
Iron (Fe), % 62.1 to 72.4
0
Magnesium (Mg), % 0
92.7 to 94.8
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0.4 to 0.8
0
Nickel (Ni), % 9.0 to 12
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0.2 to 0.4
0
Zinc (Zn), % 0
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 0.8
Residuals, % 0
0 to 0.3