Parkway Products Thixomolded® AM50A Magnesium

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Parkway Products Thixomolded® AM50A 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 M10500; ASTM B 94; European EN 1753 MC21220 (Ingot UNS M10501)
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Physical Properties	Original Value	Comments

Density	0.0640 lb/in³
Porosity	0.0 - 1.1 %
	0.0 - 1.1 %

Mechanical Properties	Original Value	Comments
Hardness, Rockwell E	74
Tensile Strength, Ultimate	29000 psi
Tensile Strength, Yield	16000 psi
Elongation at Break	10 %
Modulus of Elasticity	6500 ksi
Poissons Ratio	0.35
Shear Modulus	17.0 GPa	calculated
Impact Test	7.00 ft-lb

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000120 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	14.4 µin/in-°F @Temperature 21.1 °C
Specific Heat Capacity	0.250 BTU/lb-°F
Thermal Conductivity	62.0 W/m-K
Melting Point	1150 °F
Deflection Temperature at 1.8 MPa (264 psi)	>= 700 °F
Ignition Temperature	>= 900 °F	at One Atmosphere

Component Elements Properties	Original Value	Comments
Aluminum, Al	4.4 - 5.4 %
Copper, Cu	<= 0.010 %
Iron, Fe	<= 0.0040 %
Magnesium, Mg	94.8 %	As Remainder
Manganese, Mn	0.26 - 0.60 %
Nickel, Ni	<= 0.0020 %
Other, each	<= 0.020 %
Silicon, Si	<= 0.10 %
Zinc, Zn	<= 0.22 %

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	4.7 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

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MMAM50AT / 12299

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