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AWS E209 vs. ZK51A Magnesium

AWS E209 belongs to the iron alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, 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 AWS E209 and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 17
4.7
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
18
Tensile Strength: Ultimate (UTS), MPa 770
240

Thermal Properties

Latent Heat of Fusion, J/g 300
340
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1370
550
Specific Heat Capacity, J/kg-K 480
970
Thermal Expansion, µm/m-K 14
26

Otherwise Unclassified Properties

Base Metal Price, % relative 21
13
Density, g/cm3 7.8
1.8
Embodied Carbon, kg CO2/kg material 4.4
24
Embodied Energy, MJ/kg 63
160
Embodied Water, L/kg 180
940

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
64
Strength to Weight: Axial, points 28
36
Strength to Weight: Bending, points 24
47
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 24
0
Copper (Cu), % 0 to 0.75
0 to 0.1
Iron (Fe), % 51.5 to 64.3
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 4.0 to 7.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 9.5 to 12
0 to 0.010
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3