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AM60B Magnesium vs. ACI-ASTM CF16F Steel

AM60B magnesium belongs to the magnesium alloys classification, while ACI-ASTM CF16F steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 AM60B magnesium and the bottom bar is ACI-ASTM CF16F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
150
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
50
Fatigue Strength, MPa 96
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Tensile Strength: Ultimate (UTS), MPa 230
530
Tensile Strength: Yield (Proof), MPa 130
280

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 120
980
Melting Completion (Liquidus), °C 620
1420
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 72
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
18
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
3.4
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 990
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
220
Resilience: Unit (Modulus of Resilience), kJ/m3 190
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
19
Strength to Weight: Bending, points 50
19
Thermal Diffusivity, mm2/s 37
4.3
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
61.3 to 72.8
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 1.5
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.0020
9.0 to 12
Phosphorus (P), % 0
0 to 0.17
Selenium (Se), % 0
0.2 to 0.35
Silicon (Si), % 0 to 0.1
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.22
0