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EN-MC65210 Magnesium vs. AWS ER80S-B6

EN-MC65210 magnesium belongs to the magnesium alloys classification, while AWS ER80S-B6 belongs to the iron alloys. There are 25 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 EN-MC65210 magnesium and the bottom bar is AWS ER80S-B6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.8
19
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
74
Tensile Strength: Ultimate (UTS), MPa 270
620
Tensile Strength: Yield (Proof), MPa 200
540

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
40
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.5

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.8
Embodied Carbon, kg CO2/kg material 27
1.8
Embodied Energy, MJ/kg 220
24

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
750
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 59
25
Strength to Weight: Axial, points 38
22
Strength to Weight: Bending, points 47
21
Thermal Diffusivity, mm2/s 58
11
Thermal Shock Resistance, points 17
18

Alloy Composition


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Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
4.5 to 6.0
Copper (Cu), % 0 to 0.030
0 to 0.35
Iron (Fe), % 0 to 0.010
90.6 to 94.7
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0.4 to 0.7
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 0 to 0.0050
0 to 0.6
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.5
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.025
Unspecified Rare Earths, % 2.0 to 3.0
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