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Zamak 5 vs. ZA-27

Both Zamak 5 and ZA-27 are zinc alloys. They have 76% of their average alloy composition in common. There are 35 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is Zamak 5 and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
100 to 120
Compressive (Crushing) Strength, MPa 600
260 to 370
Elastic (Young's, Tensile) Modulus, GPa 87
78
Elongation at Break, % 6.3
2.0 to 4.5
Fatigue Strength, MPa 56
110 to 170
Knoop Hardness 120
120 to 140
Poisson's Ratio 0.25
0.27
Rockwell B Hardness 57
60 to 72
Shear Modulus, GPa 33
31
Shear Strength, MPa 260
230 to 330
Tensile Strength: Ultimate (UTS), MPa 330
400 to 430
Tensile Strength: Yield (Proof), MPa 240
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 120
130
Maximum Temperature: Mechanical, °C 95
120
Melting Completion (Liquidus), °C 390
480
Melting Onset (Solidus), °C 380
380
Solidification (Pattern Maker's) Shrinkage, % 1.2
1.3
Specific Heat Capacity, J/kg-K 410
530
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 27
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
30
Electrical Conductivity: Equal Weight (Specific), % IACS 37
53

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 6.4
5.0
Embodied Carbon, kg CO2/kg material 3.0
4.2
Embodied Energy, MJ/kg 57
80
Embodied Water, L/kg 380
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 330
420 to 890
Stiffness to Weight: Axial, points 7.5
8.6
Stiffness to Weight: Bending, points 23
28
Strength to Weight: Axial, points 14
22 to 24
Strength to Weight: Bending, points 16
24 to 25
Thermal Diffusivity, mm2/s 42
47
Thermal Shock Resistance, points 9.9
14 to 15

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
25 to 28
Cadmium (Cd), % 0 to 0.0050
0 to 0.0060
Copper (Cu), % 0.7 to 1.3
2.0 to 2.5
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.0050
0 to 0.0060
Magnesium (Mg), % 0.025 to 0.080
0.010 to 0.020
Nickel (Ni), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0 to 0.0030
0 to 0.0030
Zinc (Zn), % 94.3 to 95.7
69.3 to 73