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AM50A Magnesium vs. AWS E330H

AM50A magnesium belongs to the magnesium alloys classification, while AWS E330H 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 AM50A magnesium and the bottom bar is AWS E330H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
11
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
76
Tensile Strength: Ultimate (UTS), MPa 210
690

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Melting Completion (Liquidus), °C 620
1400
Melting Onset (Solidus), °C 570
1350
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 65
12
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 88
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 23
5.4
Embodied Energy, MJ/kg 160
76
Embodied Water, L/kg 990
180

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 35
24
Strength to Weight: Bending, points 47
22
Thermal Diffusivity, mm2/s 39
3.2
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
14 to 17
Copper (Cu), % 0 to 0.010
0 to 0.75
Iron (Fe), % 0 to 0.0040
40.5 to 51.7
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
1.0 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0 to 0.0020
33 to 37
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0