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ISO-WD32250 Magnesium vs. R05200 Tantalum

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while R05200 tantalum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 ISO-WD32250 magnesium and the bottom bar is R05200 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 4.5 to 8.6
1.1 to 28
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
69
Tensile Strength: Ultimate (UTS), MPa 310 to 330
210 to 540
Tensile Strength: Yield (Proof), MPa 240 to 290
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 340
140
Specific Heat Capacity, J/kg-K 980
140
Thermal Conductivity, W/m-K 130
59
Thermal Expansion, µm/m-K 26
6.5

Otherwise Unclassified Properties

Density, g/cm3 1.8
17
Embodied Water, L/kg 950
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 26
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 930
50 to 420
Stiffness to Weight: Axial, points 14
6.2
Stiffness to Weight: Bending, points 67
11
Strength to Weight: Axial, points 49 to 51
3.6 to 9.0
Strength to Weight: Bending, points 58 to 60
4.8 to 8.8
Thermal Diffusivity, mm2/s 72
25
Thermal Shock Resistance, points 19 to 20
13 to 32

Alloy Composition


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Carbon (C), % 0
0 to 0.010
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0
0 to 0.010
Magnesium (Mg), % 94.9 to 97.1
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
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
Tantalum (Ta), % 0
99.8 to 100
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 2.5 to 4.0
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0