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AWS ER90S-D2 vs. EN-MC21110 Magnesium

AWS ER90S-D2 belongs to the iron alloys classification, while EN-MC21110 magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 ER90S-D2 and the bottom bar is EN-MC21110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 19
2.8 to 6.7
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
18
Tensile Strength: Ultimate (UTS), MPa 710
200 to 270
Tensile Strength: Yield (Proof), MPa 600
100 to 120

Thermal Properties

Latent Heat of Fusion, J/g 260
350
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1410
500
Specific Heat Capacity, J/kg-K 470
990
Thermal Conductivity, W/m-K 47
80
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
61

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
12
Density, g/cm3 7.8
1.7
Embodied Carbon, kg CO2/kg material 1.6
23
Embodied Energy, MJ/kg 21
160
Embodied Water, L/kg 50
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
4.9 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 980
120 to 150
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
69
Strength to Weight: Axial, points 25
33 to 44
Strength to Weight: Bending, points 23
45 to 54
Thermal Diffusivity, mm2/s 13
47
Thermal Shock Resistance, points 21
12 to 16

Alloy Composition

Aluminum (Al), % 0
7.0 to 8.7
Carbon (C), % 0.070 to 0.12
0
Copper (Cu), % 0 to 0.5
0 to 0.030
Iron (Fe), % 95.2 to 97.4
0 to 0.0050
Magnesium (Mg), % 0
89.6 to 92.6
Manganese (Mn), % 1.6 to 2.1
0.1 to 0.35
Molybdenum (Mo), % 0.4 to 0.6
0
Nickel (Ni), % 0 to 0.15
0 to 0.0020
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.5 to 0.8
0 to 0.2
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
0.35 to 1.0
Residuals, % 0
0 to 0.010