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EN-MC21210 Magnesium vs. R60704 Alloy

EN-MC21210 magnesium belongs to the magnesium alloys classification, while R60704 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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-MC21210 magnesium and the bottom bar is R60704 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
97
Elongation at Break, % 14
16
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
36
Tensile Strength: Ultimate (UTS), MPa 190
470
Tensile Strength: Yield (Proof), MPa 90
270

Thermal Properties

Latent Heat of Fusion, J/g 350
240
Specific Heat Capacity, J/kg-K 1000
270
Thermal Conductivity, W/m-K 120
22
Thermal Expansion, µm/m-K 27
6.0

Otherwise Unclassified Properties

Density, g/cm3 1.6
6.7
Embodied Water, L/kg 980
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
64
Resilience: Unit (Modulus of Resilience), kJ/m3 92
370
Stiffness to Weight: Axial, points 15
8.1
Stiffness to Weight: Bending, points 72
23
Strength to Weight: Axial, points 32
20
Strength to Weight: Bending, points 44
20
Thermal Diffusivity, mm2/s 76
12
Thermal Shock Resistance, points 11
58

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0.2 to 0.4
Copper (Cu), % 0 to 0.010
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 0.0050
0.2 to 0.4
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.18
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
1.0 to 2.0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0
93 to 98.8
Residuals, % 0 to 0.010
0