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Grade 704C Zirconium vs. ZE63A Magnesium

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while ZE63A magnesium belongs to the magnesium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (14, 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 grade 704C zirconium and the bottom bar is ZE63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
73
Elastic (Young's, Tensile) Modulus, GPa 97
46
Elongation at Break, % 11
7.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
17
Tensile Strength: Ultimate (UTS), MPa 470
300
Tensile Strength: Yield (Proof), MPa 310
190

Thermal Properties

Latent Heat of Fusion, J/g 240
330
Specific Heat Capacity, J/kg-K 270
950
Thermal Conductivity, W/m-K 21
110
Thermal Expansion, µm/m-K 5.9
27

Otherwise Unclassified Properties

Density, g/cm3 6.7
2.0
Embodied Water, L/kg 460
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
20
Resilience: Unit (Modulus of Resilience), kJ/m3 490
400
Stiffness to Weight: Axial, points 8.1
12
Stiffness to Weight: Bending, points 23
58
Strength to Weight: Axial, points 20
40
Strength to Weight: Bending, points 20
48
Thermal Diffusivity, mm2/s 12
57
Thermal Shock Resistance, points 58
17

Alloy Composition

Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.1
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
0
Magnesium (Mg), % 0
89.6 to 92
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0
Tin (Sn), % 1.0 to 2.0
0
Unspecified Rare Earths, % 0
2.1 to 3.0
Zinc (Zn), % 0
5.5 to 6.0
Zirconium (Zr), % 92.9 to 99
0.4 to 1.0
Residuals, % 0
0 to 0.3