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AM60A Magnesium vs. Grade FDSiCr Steel

AM60A magnesium belongs to the magnesium alloys classification, while grade FDSiCr steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 AM60A magnesium and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
580
Elastic (Young's, Tensile) Modulus, GPa 45
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
80
Tensile Strength: Ultimate (UTS), MPa 230
1930

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 120
410
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 62
48
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 69
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.2
Density, g/cm3 1.7
7.7
Embodied Carbon, kg CO2/kg material 23
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 990
48

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
69
Strength to Weight: Bending, points 49
44
Thermal Diffusivity, mm2/s 37
13
Thermal Shock Resistance, points 14
58

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 0 to 0.35
0 to 0.12
Iron (Fe), % 0
96.5 to 97.8
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0.5 to 0.9
Nickel (Ni), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
1.2 to 1.6
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.22
0