Parkway Products Thixomolded® AZ91D Magnesium

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Parkway Products Thixomolded® AZ91D Magnesium
Categories:	Metal; Nonferrous Metal; Magnesium Alloy
Material Notes:	Thixomolding® is a fabrication technique, similar to injection molding, that uses magnesium alloys as the “resin” instead of plastic. Solid magnesium alloy pellets are fed into the machine, heated to high temperatures and injected into a closed die / mold. Parts from the machine usually need no additional machining, finishing or puttying. Information provided by Parkway Products.
Key Words:	UNS M11916; Mg; European EN 1753 MC 21120; ASTM B 94;SAE J465 (Ingot UNS M11917)
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Physical Properties	Metric	English	Comments

Density	1.80 g/cc	0.0650 lb/in³
Porosity	0.0 - 1.1 %	0.0 - 1.1 %
	0.0 - 1.1 %	0.0 - 1.1 %

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell E	75	75
Tensile Strength, Ultimate	248 MPa	36000 psi
Tensile Strength, Yield	159 MPa	23000 psi
Elongation at Break	6.0 %	6.0 %
Modulus of Elasticity	44.8 GPa	6500 ksi
Poissons Ratio	0.35	0.35
Shear Modulus	17.0 GPa	2470 ksi	calculated
Impact Test	4.75 J	3.50 ft-lb

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000140 ohm-cm	0.0000140 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	24.8 µm/m-°C @Temperature 21.1 °C	13.8 µin/in-°F @Temperature 70.0 °F
Specific Heat Capacity	1.05 J/g-°C	0.250 BTU/lb-°F
Thermal Conductivity	72.0 W/m-K	500 BTU-in/hr-ft²-°F
Melting Point	596.1 °C	1105 °F
Deflection Temperature at 1.8 MPa (264 psi)	>= 371 °C	>= 700 °F
Ignition Temperature	>= 482 °C	>= 900 °F	at One Atmosphere

Component Elements Properties	Metric	English	Comments
Aluminum, Al	8.3 - 9.7 %	8.3 - 9.7 %
Copper, Cu	<= 0.030 %	<= 0.030 %
Iron, Fe	<= 0.0050 %	<= 0.0050 %
Magnesium, Mg	90 %	90 %	As Remainder
Manganese, Mn	>= 0.13 %	>= 0.13 %
Nickel, Ni	<= 0.0020 %	<= 0.0020 %
Silicon, Si	<= 0.10 %	<= 0.10 %
Zinc, Zn	0.35 - 1.0 %	0.35 - 1.0 %

Descriptive Properties
Across Parting Line Dimensions	+ 0.0015 in		Tolerance (0 - 10 in²)
	+ 0.0025 in		Tolerance (11 - 20 in²)
	+ 0.004 in		Tolerance (21 - 50 in²)
	+ 0.006 in		Tolerance (51 - 100 in²)
Flatness Across Largest Dimension	+/- 0.001 in		Tolerance (each inch beyond 1 in)
	+/- 0.002 in		Tolerance (0 - 3 in)
Linear Dimension in same Die Half	+/- 0.0005 in		Tolerance (0 to 1 in)
	+/- 0.0010 in		Tolerance (each inch beyond 1 in)
Mil 117B Salt Spray Corrosion	2.8 Mils per Year
Moving Die Component Tolerances	+ 0.004 in		Tolerance (0 - 10 in²)
	+ 0.006 in		Tolerance (11 - 20 in²)
	+ 0.008 in		Tolerance (21 - 50 in²)
	+ 0.010 in		Tolerance (51 - 100 in²)
Shielding Effectiveness 0.020" thk	>85 dB		100MHz
Shielding Effectiveness 0.050" thk	>88 dB		100MHz
Surface Finish	32 RMS or better
Thickness	0.015 - 2.0 in
UL94 Flame Exposure Results	DNB

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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MMAZ96T / 12343

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