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Ensinger PEI

Zinc ZA-27 (Zn-27Al-2Cu-0.015Mg), Permanent Mold Cast
Categories: Metal; Nonferrous Metal; Zinc Alloy

Material Notes: Used in bearing applications. ZA-27 has a higher bearing load capacity than bronze bearing alloys, although its environment (both temperature and corrosive) is more limited.

Key Words: Zinc Foundry Alloy; UNS Z35841 (Castings); UNS Z35840 (Ingot)
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Physical PropertiesMetricEnglishComments
Density 5.02 g/cc0.181 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 424 MPa61500 psi
Elongation at Break 2.0 %2.0 %in 5 cm
Modulus of Elasticity 77.9 GPa11300 ksi
Fatigue Strength 117 MPa
@# of Cycles 5.00e+8
17000 psi
@# of Cycles 5.00e+8
Reverse Bending
Coefficient of Friction 0.030 - 0.0700.030 - 0.070
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000580 ohm-cm0.00000580 ohm-cm
 
Thermal PropertiesMetricEnglishComments
Heat of Fusion 128 J/g55.1 BTU/lb
CTE, linear 26.0 µm/m-°C
@Temperature 20.0 - 200 °C
14.4 µin/in-°F
@Temperature 68.0 - 392 °F
Specific Heat Capacity 0.525 J/g-°C0.125 BTU/lb-°F
Thermal Conductivity 125 W/m-K868 BTU-in/hr-ft²-°F
Melting Point 376 - 484 °C709 - 903 °F
Solidus 376 °C709 °F
Liquidus 484 °C903 °F
 
Processing PropertiesMetricEnglishComments
Casting Temperature 515 - 545 °C959 - 1010 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 25 - 28 %25 - 28 %Addition, Casting
 25.5 - 28 %25.5 - 28 %Addition, Ingot form
Cadmium, Cd <= 0.0050 %<= 0.0050 %Impurity, Ingot form
 <= 0.0060 %<= 0.0060 %Impurity, Casting
Copper, Cu 2.0 - 2.5 %2.0 - 2.5 %Addition, Casting
 2.0 - 2.5 %2.0 - 2.5 %Addition, Ingot form
Iron, Fe <= 0.072 %<= 0.072 %Impurity, Ingot form
 <= 0.075 %<= 0.075 %Impurity, Casting
Lead, Pb <= 0.0050 %<= 0.0050 %Impurity, Ingot form
 <= 0.0060 %<= 0.0060 %Impurity, Casting
Magnesium, Mg 0.010 - 0.020 %0.010 - 0.020 %Addition, Casting
 0.012 - 0.020 %0.012 - 0.020 %Addition, Ingot form
Tin, Sn <= 0.0020 %<= 0.0020 %Impurity, Ingot form
 <= 0.0030 %<= 0.0030 %Impurity, Casting
Zinc, Zn 69.396 - 72.488 %69.396 - 72.488 %As balance; Ingot per ASTM B 669
 69.39 - 72.99 %69.39 - 72.99 %As balance; Castings per ASTM B 791

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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