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ZA-12 vs. Zamak 5

Both ZA-12 and Zamak 5 are zinc alloys. They have a moderately high 93% 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 ZA-12 and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 89 to 100
92
Compressive (Crushing) Strength, MPa 230 to 270
600
Elastic (Young's, Tensile) Modulus, GPa 83
87
Elongation at Break, % 1.6 to 5.3
6.3
Fatigue Strength, MPa 73 to 120
56
Knoop Hardness 110 to 130
120
Poisson's Ratio 0.26
0.25
Rockwell B Hardness 56 to 63
57
Shear Modulus, GPa 33
33
Shear Strength, MPa 240 to 300
260
Tensile Strength: Ultimate (UTS), MPa 260 to 400
330
Tensile Strength: Yield (Proof), MPa 210 to 320
240

Thermal Properties

Latent Heat of Fusion, J/g 120
120
Maximum Temperature: Mechanical, °C 100
95
Melting Completion (Liquidus), °C 430
390
Melting Onset (Solidus), °C 380
380
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.2
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
26
Electrical Conductivity: Equal Weight (Specific), % IACS 42
37

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 6.0
6.4
Embodied Carbon, kg CO2/kg material 3.4
3.0
Embodied Energy, MJ/kg 64
57
Embodied Water, L/kg 440
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 20
19
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 620
330
Stiffness to Weight: Axial, points 7.6
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 12 to 19
14
Strength to Weight: Bending, points 15 to 20
16
Thermal Diffusivity, mm2/s 43
42
Thermal Shock Resistance, points 9.4 to 14
9.9

Alloy Composition

Aluminum (Al), % 10.5 to 11.5
3.5 to 4.3
Cadmium (Cd), % 0 to 0.0060
0 to 0.0050
Copper (Cu), % 0.5 to 1.2
0.7 to 1.3
Iron (Fe), % 0 to 0.075
0 to 0.1
Lead (Pb), % 0 to 0.0060
0 to 0.0050
Magnesium (Mg), % 0.015 to 0.030
0.025 to 0.080
Nickel (Ni), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.060
0 to 0.030
Tin (Sn), % 0 to 0.0030
0 to 0.0030
Zinc (Zn), % 87.1 to 89
94.3 to 95.7