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AWS E410 vs. AZ91A Magnesium

AWS E410 belongs to the iron alloys classification, while AZ91A magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 E410 and the bottom bar is AZ91A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 23
5.0
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Tensile Strength: Ultimate (UTS), MPa 580
240
Tensile Strength: Yield (Proof), MPa 440
160

Thermal Properties

Latent Heat of Fusion, J/g 270
360
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1400
470
Specific Heat Capacity, J/kg-K 480
990
Thermal Conductivity, W/m-K 28
73
Thermal Expansion, µm/m-K 14
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
52

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
12
Density, g/cm3 7.8
1.7
Embodied Carbon, kg CO2/kg material 2.0
22
Embodied Energy, MJ/kg 28
160
Embodied Water, L/kg 100
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
11
Resilience: Unit (Modulus of Resilience), kJ/m3 500
280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
69
Strength to Weight: Axial, points 21
38
Strength to Weight: Bending, points 20
49
Thermal Diffusivity, mm2/s 7.5
42
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 0
8.3 to 9.7
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 11 to 13.5
0
Copper (Cu), % 0 to 0.75
0 to 0.1
Iron (Fe), % 82.2 to 89
0
Magnesium (Mg), % 0
88.2 to 91.2
Manganese (Mn), % 0 to 1.0
0.13 to 0.5
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0 to 0.7
0 to 0.030
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.9
0 to 0.5
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0.35 to 1.0