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ZA-27 vs. Type 4 Niobium

ZA-27 belongs to the zinc alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ZA-27 and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 120
120
Elastic (Young's, Tensile) Modulus, GPa 78
110
Elongation at Break, % 2.0 to 4.5
23
Poisson's Ratio 0.27
0.4
Shear Modulus, GPa 31
38
Tensile Strength: Ultimate (UTS), MPa 400 to 430
220
Tensile Strength: Yield (Proof), MPa 260 to 370
140

Thermal Properties

Latent Heat of Fusion, J/g 130
310
Specific Heat Capacity, J/kg-K 530
270
Thermal Conductivity, W/m-K 130
42
Thermal Expansion, µm/m-K 26
7.3

Otherwise Unclassified Properties

Density, g/cm3 5.0
8.6
Embodied Water, L/kg 570
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1 to 18
44
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 890
93
Stiffness to Weight: Axial, points 8.6
6.8
Stiffness to Weight: Bending, points 28
18
Strength to Weight: Axial, points 22 to 24
7.2
Strength to Weight: Bending, points 24 to 25
9.5
Thermal Diffusivity, mm2/s 47
18
Thermal Shock Resistance, points 14 to 15
21

Alloy Composition

Aluminum (Al), % 25 to 28
0
Cadmium (Cd), % 0 to 0.0060
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 2.0 to 2.5
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.1
0 to 0.010
Lead (Pb), % 0 to 0.0060
0
Magnesium (Mg), % 0.010 to 0.020
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0 to 0.020
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Silicon (Si), % 0 to 0.080
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 69.3 to 73
0
Zirconium (Zr), % 0
0.8 to 1.2