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AM60B Magnesium vs. SAE-AISI T5 Steel

AM60B magnesium belongs to the magnesium alloys classification, while SAE-AISI T5 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 SAE-AISI T5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
80
Tensile Strength: Ultimate (UTS), MPa 230
860 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Melting Completion (Liquidus), °C 620
1810
Melting Onset (Solidus), °C 540
1750
Specific Heat Capacity, J/kg-K 1000
410
Thermal Conductivity, W/m-K 61
21
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
60
Density, g/cm3 1.7
9.4
Embodied Carbon, kg CO2/kg material 23
11
Embodied Energy, MJ/kg 160
170
Embodied Water, L/kg 990
140

Common Calculations

Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 71
21
Strength to Weight: Axial, points 38
25 to 63
Strength to Weight: Bending, points 50
21 to 39
Thermal Diffusivity, mm2/s 37
5.5
Thermal Shock Resistance, points 14
26 to 66

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 5.0
Cobalt (Co), % 0
7.0 to 9.5
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
60.6 to 68.3
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0.2 to 0.4
Molybdenum (Mo), % 0
0.5 to 1.3
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4
Zinc (Zn), % 0 to 0.22
0