Zinc AG40A (Zinc Alloy 3; Zn-4Al-0.4Mg; Zamak 3), Cast

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Zinc AG40A (Zinc Alloy 3; Zn-4Al-0.4Mg; Zamak 3), Cast
Categories:	Metal; Nonferrous Metal; Zinc Alloy
Material Notes:	Recommended Casting Temperature 395-425°C
Key Words:	ZA-3; No. 3 Die Casting Alloy; ASTM AG40A; SAE 903; UNS Z33520; QQ-Z-363; Zamac3
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Physical Properties	Metric	English	Comments

Density	6.60 g/cc	0.238 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	82	82	500 kg load; 10 mm hardened steel ball
Hardness, Knoop	106	106	Estimated from Brinell Value
Hardness, Rockwell A	36	36	Estimated from Brinell Value
Hardness, Rockwell B	50	50	Estimated from Brinell Value
Hardness, Vickers	93	93	Estimated from Brinell Value
Tensile Strength, Ultimate	285 MPa	41300 psi
Elongation at Break	10 %	10 %	in 5 cm
Compressive Strength	415 MPa	60200 psi
Fatigue Strength	48.0 MPa @# of Cycles 5.00e+8	6960 psi @# of Cycles 5.00e+8	Reverse Bending
Fracture Toughness	12.3 MPa-m½	11.2 ksi-in½	K(IC) Pressure Die Cast
Shear Strength	215 MPa	31200 psi
Charpy Impact, Unnotched	58.0 J @Thickness 6.35 mm	42.8 ft-lb @Thickness 0.250 in	square bar

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000630 ohm-cm	0.00000630 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	27.4 µm/m-°C @Temperature 20.0 °C	15.2 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	0.420 J/g-°C	0.100 BTU/lb-°F
Thermal Conductivity	113 W/m-K	784 BTU-in/hr-ft²-°F
Melting Point	381 - 387 °C	718 - 729 °F
Solidus	381 °C	718 °F
Liquidus	387 °C	729 °F

Processing Properties	Metric	English	Comments
Casting Temperature	395 - 425 °C	743 - 797 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	3.5 - 4.3 %	3.5 - 4.3 %	Casting
	3.9 - 4.3 %	3.9 - 4.3 %	Ingot form
Cadmium, Cd	<= 0.0030 %	<= 0.0030 %	Ingot form
	<= 0.0040 %	<= 0.0040 %	Casting
Copper, Cu	<= 0.10 %	<= 0.10 %	Ingot form
	<= 0.25 %	<= 0.25 %	Casting
Iron, Fe	<= 0.075 %	<= 0.075 %	Ingot form
	<= 0.10 %	<= 0.10 %	Casting
Lead, Pb	<= 0.0040 %	<= 0.0040 %	Ingot form
	<= 0.0050 %	<= 0.0050 %	Casting
Magnesium, Mg	0.020 - 0.050 %	0.020 - 0.050 %	Casting
	0.025 - 0.050 %	0.025 - 0.050 %	Ingot form
Tin, Sn	<= 0.0020 %	<= 0.0020 %	Ingot form
	<= 0.0030 %	<= 0.0030 %	Casting
Zinc, Zn	95.466 - 96.075 %	95.466 - 96.075 %	As balance; Ingot per ASTM B 240
	95.288 - 96.48 %	95.288 - 96.48 %	As balance; Castings per ASTM B 86

Descriptive Properties
Damping	3.6 Q^-1 x 10³		at 100 Hz, 20°C
	6.4 Q^-1 x 10³		at 100 Hz, 100°C

References for this datasheet.

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MZN40A / 14524

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