Magnesium AZ91E-F, Cast

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Magnesium AZ91E-F, Cast
Categories:	Metal; Nonferrous Metal; Magnesium Alloy
Material Notes:	Magnesium AZ91A, B, C, D, and E have the same nominal composition but differ in ranges and/or specified impurity limits. This high purity alloy has excellent corrosion resistance. Commonly used in pressure-tight sand and permanent mold castings with high tensile strength and moderate yield strength.
Key Words:	UNS M11919; Mg; European EN 1753 MC 21120; AMS 4490; ASTM B 94;SAE J465 (Ingot UNS M11918)
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Physical Properties	Original Value	Comments

Density	1.81 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	63	500 kg load, 10 mm ball
Hardness, Knoop	84	Estimated from Brinell
Hardness, Rockwell E	66
Hardness, Vickers	71	Estimated from Brinell
Tensile Strength, Ultimate	165 MPa
Tensile Strength, Yield	97.0 MPa @Strain 0.2 %
Elongation at Break	2.5 %	in 50 mm
Tensile Modulus	45.0 GPa
Compressive Yield Strength	97.0 MPa	at 0.2% offset
Poissons Ratio	0.35
Fatigue Strength	80.0 - 95.0 MPa @# of Cycles 5.00e+8	R.R. Moore Test
Shear Modulus	17.0 GPa
Charpy Impact	0.790 J	V-notch

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000143 ohm-cm	AZ91D-F

Thermal Properties	Original Value	Comments
Heat of Fusion	373 J/g
CTE, linear	26.0 µm/m-°C @Temperature 25.0 °C
	27.2 µm/m-°C @Temperature 20.0 - 200 °C
Specific Heat Capacity	0.800 J/g-°C @Temperature 20.0 °C
Thermal Conductivity	72.7 W/m-K
Melting Point	>= 420 °C	Incipient Melting
Solidus	470 °C
Liquidus	595 °C

Processing Properties	Original Value	Comments
Casting Temperature	650 - 815 °C	Permanent Mold Casting
	705 - 845 °C	Sand Casting

Component Elements Properties	Original Value	Comments
Aluminum, Al	8.1 - 9.3 %
Copper, Cu	<= 0.015 %
Iron, Fe	<= 0.0050 %
Magnesium, Mg	88.51 - 91.22 %	As Remainder
Manganese, Mn	0.17 - 0.35 %
Nickel, Ni	<= 0.0010 %
Other, total	<= 0.30 %
Silicon, Si	<= 0.20 %
Zinc, Zn	0.40 - 1.0 %

References for this datasheet.

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MMAZ91EF / 12337

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