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AM60B Magnesium vs. SAE-AISI T15 Steel

AM60B magnesium belongs to the magnesium alloys classification, while SAE-AISI T15 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 T15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
76
Tensile Strength: Ultimate (UTS), MPa 230
830 to 2240

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Melting Completion (Liquidus), °C 620
1690
Melting Onset (Solidus), °C 540
1640
Specific Heat Capacity, J/kg-K 1000
430
Thermal Conductivity, W/m-K 61
21
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
43
Density, g/cm3 1.7
8.7
Embodied Carbon, kg CO2/kg material 23
16
Embodied Energy, MJ/kg 160
250
Embodied Water, L/kg 990
140

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
22
Strength to Weight: Axial, points 38
26 to 71
Strength to Weight: Bending, points 50
22 to 43
Thermal Diffusivity, mm2/s 37
5.6
Thermal Shock Resistance, points 14
26 to 70

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
1.5 to 1.6
Chromium (Cr), % 0
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
67.5 to 73.5
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0
4.5 to 5.3
Zinc (Zn), % 0 to 0.22
0