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AM60A Magnesium vs. AWS E309Mo

AM60A magnesium belongs to the magnesium alloys classification, while AWS E309Mo belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 AWS E309Mo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 8.8
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
79
Tensile Strength: Ultimate (UTS), MPa 230
620

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 550
1390
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 62
15
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 69
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
22
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
4.2
Embodied Energy, MJ/kg 160
59
Embodied Water, L/kg 990
180

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
22
Strength to Weight: Bending, points 49
20
Thermal Diffusivity, mm2/s 37
3.9
Thermal Shock Resistance, points 14
15

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
22 to 25
Copper (Cu), % 0 to 0.35
0 to 0.75
Iron (Fe), % 0
53.6 to 63.5
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.030
12 to 14
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0