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R05240 Alloy vs. ZA-12

R05240 alloy belongs to the otherwise unclassified metals classification, while ZA-12 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-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
83
Elongation at Break, % 25
1.6 to 5.3
Poisson's Ratio 0.36
0.26
Shear Modulus, GPa 57
33
Tensile Strength: Ultimate (UTS), MPa 270
260 to 400
Tensile Strength: Yield (Proof), MPa 170
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 210
120
Specific Heat Capacity, J/kg-K 190
450
Thermal Expansion, µm/m-K 6.8
24

Otherwise Unclassified Properties

Density, g/cm3 14
6.0
Embodied Water, L/kg 460
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 90
260 to 620
Stiffness to Weight: Axial, points 6.3
7.6
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 5.4
12 to 19
Strength to Weight: Bending, points 6.8
15 to 20
Thermal Shock Resistance, points 18
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
0.5 to 1.2
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
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 0.060
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
87.1 to 89