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R05255 Alloy vs. Zamak 5

R05255 alloy belongs to the otherwise unclassified metals classification, while Zamak 5 belongs to the zinc alloys. There are 20 material properties with values for both materials. Properties with values for just one material (15, 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 R05255 alloy and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
87
Elongation at Break, % 20
6.3
Poisson's Ratio 0.34
0.25
Shear Modulus, GPa 70
33
Tensile Strength: Ultimate (UTS), MPa 540
330
Tensile Strength: Yield (Proof), MPa 450
240

Thermal Properties

Latent Heat of Fusion, J/g 140
120
Specific Heat Capacity, J/kg-K 140
410
Thermal Conductivity, W/m-K 59
110
Thermal Expansion, µm/m-K 6.6
27

Otherwise Unclassified Properties

Density, g/cm3 17
6.4
Embodied Water, L/kg 630
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
19
Resilience: Unit (Modulus of Resilience), kJ/m3 530
330
Stiffness to Weight: Axial, points 6.3
7.5
Stiffness to Weight: Bending, points 11
23
Strength to Weight: Axial, points 9.1
14
Strength to Weight: Bending, points 8.9
16
Thermal Diffusivity, mm2/s 25
42
Thermal Shock Resistance, points 31
9.9

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
0.7 to 1.3
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.025 to 0.080
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0 to 0.020
Niobium (Nb), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Silicon (Si), % 0 to 0.0050
0 to 0.030
Tantalum (Ta), % 95.9 to 98
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0
94.3 to 95.7