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EN-MC95310 Magnesium vs. AWS ER90S-B3

EN-MC95310 magnesium belongs to the magnesium alloys classification, while AWS ER90S-B3 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 EN-MC95310 magnesium and the bottom bar is AWS ER90S-B3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 2.2
19
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 280
690
Tensile Strength: Yield (Proof), MPa 190
620

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
40
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 50
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
4.1
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
1.8
Embodied Energy, MJ/kg 260
24
Embodied Water, L/kg 900
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
130
Resilience: Unit (Modulus of Resilience), kJ/m3 420
1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 40
25
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 28
11
Thermal Shock Resistance, points 18
20

Alloy Composition


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Carbon (C), % 0
0.070 to 0.12
Chromium (Cr), % 0
2.3 to 2.7
Copper (Cu), % 0 to 0.030
0 to 0.35
Iron (Fe), % 0 to 0.010
93.5 to 95.9
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0.4 to 0.7
Molybdenum (Mo), % 0
0.9 to 1.2
Nickel (Ni), % 0 to 0.0050
0 to 0.2
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0.4 to 0.7
Sulfur (S), % 0
0 to 0.025
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5