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R05240 Alloy vs. ZA-27

R05240 alloy belongs to the otherwise unclassified metals classification, while ZA-27 belongs to the zinc alloys. There are 18 material properties with values for both materials. Properties with values for just one material (18, 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 R05240 alloy and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
78
Elongation at Break, % 25
2.0 to 4.5
Poisson's Ratio 0.36
0.27
Shear Modulus, GPa 57
31
Tensile Strength: Ultimate (UTS), MPa 270
400 to 430
Tensile Strength: Yield (Proof), MPa 170
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 210
130
Specific Heat Capacity, J/kg-K 190
530
Thermal Expansion, µm/m-K 6.8
26

Otherwise Unclassified Properties

Density, g/cm3 14
5.0
Embodied Water, L/kg 460
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 90
420 to 890
Stiffness to Weight: Axial, points 6.3
8.6
Stiffness to Weight: Bending, points 13
28
Strength to Weight: Axial, points 5.4
22 to 24
Strength to Weight: Bending, points 6.8
24 to 25
Thermal Shock Resistance, points 18
14 to 15

Alloy Composition

Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
2.0 to 2.5
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0 to 0.020
Niobium (Nb), % 35 to 42
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.020
0
Silicon (Si), % 0 to 0.0050
0 to 0.080
Tantalum (Ta), % 57.9 to 65
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
69.3 to 73