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Z21721 Zinc vs. R05240 Alloy

Z21721 zinc belongs to the zinc alloys classification, while R05240 alloy belongs to the otherwise unclassified metals. There are 18 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 Z21721 zinc and the bottom bar is R05240 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
150
Elongation at Break, % 40
25
Poisson's Ratio 0.25
0.36
Shear Modulus, GPa 35
57
Tensile Strength: Ultimate (UTS), MPa 150
270
Tensile Strength: Yield (Proof), MPa 120
170

Thermal Properties

Latent Heat of Fusion, J/g 110
210
Specific Heat Capacity, J/kg-K 390
190
Thermal Expansion, µm/m-K 26
6.8

Otherwise Unclassified Properties

Density, g/cm3 6.6
14
Embodied Water, L/kg 340
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
59
Resilience: Unit (Modulus of Resilience), kJ/m3 88
90
Stiffness to Weight: Axial, points 7.3
6.3
Stiffness to Weight: Bending, points 22
13
Strength to Weight: Axial, points 6.4
5.4
Strength to Weight: Bending, points 9.6
6.8
Thermal Shock Resistance, points 4.8
18

Alloy Composition

Aluminum (Al), % 0 to 0.0020
0
Cadmium (Cd), % 0 to 0.070
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 0 to 0.0050
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.010
0 to 0.010
Lead (Pb), % 0 to 1.0
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
35 to 42
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 0 to 0.020
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 98.9 to 100
0