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AWS E90C-B9 vs. EN-MC65120 Magnesium

AWS E90C-B9 belongs to the iron alloys classification, while EN-MC65120 magnesium belongs to the magnesium 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 AWS E90C-B9 and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 18
3.1
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
17
Tensile Strength: Ultimate (UTS), MPa 710
160
Tensile Strength: Yield (Proof), MPa 460
110

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1410
520
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 25
100
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
25
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 2.6
25
Embodied Energy, MJ/kg 37
190
Embodied Water, L/kg 91
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 550
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
62
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 23
34
Thermal Diffusivity, mm2/s 6.9
56
Thermal Shock Resistance, points 20
9.8

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.13
0
Chromium (Cr), % 8.0 to 10.5
0
Copper (Cu), % 0 to 0.2
0 to 0.030
Iron (Fe), % 84.4 to 90.9
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 0 to 1.2
0 to 0.15
Molybdenum (Mo), % 0.85 to 1.2
0
Nickel (Ni), % 0 to 0.8
0 to 0.0050
Niobium (Nb), % 0.020 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.010
Sulfur (S), % 0 to 0.015
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010