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EQ21A Magnesium vs. R05252 Alloy

EQ21A magnesium belongs to the magnesium alloys classification, while R05252 alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (17, 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 EQ21A magnesium and the bottom bar is R05252 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.4
23
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 250
310
Tensile Strength: Yield (Proof), MPa 190
220

Thermal Properties

Latent Heat of Fusion, J/g 340
140
Specific Heat Capacity, J/kg-K 980
140
Thermal Expansion, µm/m-K 27
6.7

Otherwise Unclassified Properties

Density, g/cm3 1.9
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
63
Resilience: Unit (Modulus of Resilience), kJ/m3 410
120
Stiffness to Weight: Axial, points 13
6.5
Stiffness to Weight: Bending, points 63
12
Strength to Weight: Axial, points 37
5.2
Strength to Weight: Bending, points 47
6.1
Thermal Shock Resistance, points 15
17

Alloy Composition


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Carbon (C), % 0
0 to 0.010
Copper (Cu), % 0.050 to 0.1
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0
0 to 0.010
Magnesium (Mg), % 93.9 to 96.8
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.010
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 1.3 to 1.7
0
Tantalum (Ta), % 0
88.8 to 91
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
9.0 to 11
Unspecified Rare Earths, % 1.5 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0