Zinc ZA-8 (Zn-8Al-1Cu-0.02Mg), Permanent Mold Cast

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Zinc ZA-8 (Zn-8Al-1Cu-0.02Mg), Permanent Mold Cast
Categories:	Metal; Nonferrous Metal; Zinc Alloy
Material Notes:	Recommended Casting Temperature 435-460°C
Key Words:	ASTM B791; ASTN B669; UNS Z35635 (Ingot); UNS Z35636 (castings)
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Physical Properties	Original Value	Comments

Density	6.30 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	87	500 kg load; 10 mm hardened steel ball
Hardness, Knoop	111	Estimated from Brinell Value
Hardness, Rockwell A	37	Estimated from Brinell Value
Hardness, Rockwell B	54	Estimated from Brinell Value
Hardness, Vickers	100	Estimated from Brinell Value
Tensile Strength, Ultimate	240 MPa @Diameter 12.7 mm
Tensile Strength, Yield	208 MPa @Strain 0.2 %
Elongation at Break	1.3 %	in 5 cm
Modulus of Elasticity	85.5 GPa
Compressive Strength	210 MPa
Fatigue Strength	52.0 MPa @# of Cycles 5.00e+8	Reverse Bend
Shear Strength	242 MPa
Charpy Impact, Unnotched	20.0 J @Thickness 10.0 mm	square bar

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000620 ohm-cm

Thermal Properties	Original Value	Comments
Heat of Fusion	112 J/g
CTE, linear	23.2 µm/m-°C @Temperature 20.0 °C
Specific Heat Capacity	0.435 J/g-°C
Thermal Conductivity	115 W/m-K
Melting Point	375 - 404 °C
Solidus	375 °C
Liquidus	404 °C

Processing Properties	Original Value	Comments
Casting Temperature	435 - 460 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	8.0 - 8.8 %	Addition, Casting
	8.2 - 8.8 %	Addition, Ingot form
Cadmium, Cd	<= 0.0050 %	Impurity, Ingot form
	<= 0.0060 %	Impurity, Casting
Copper, Cu	0.80 - 1.3 %	Addition, Casting
	0.80 - 1.3 %	Addition, Ingot form
Iron, Fe	<= 0.065 %	Impurity, Ingot form
	<= 0.075 %	Impurity, Casting
Lead, Pb	<= 0.0050 %	Impurity, Ingot form
	<= 0.0060 %	Impurity, Casting
Magnesium, Mg	0.015 - 0.030 %	Addition, Casting
	0.020 - 0.030 %	Addition, Ingot form
Tin, Sn	<= 0.0020 %	Impurity, Ingot form
	<= 0.0030 %	Impurity, Casting
Zinc, Zn	89.793 - 90.98 %	As balance; Ingot per ASTM B 669
	89.78 - 91.185 %	As balance; Castings per ASTM B 791

References for this datasheet.

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