Magnesium AZ91E-T6, Cast

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Magnesium AZ91E-T6, 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. General purpose alloy, high strength.
Key Words:	UNS M11919; Mg; European EN 1753 MC 21120; AMS 4446; ASTM B 94;SAE J465 (Ingot UNS M11918)
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Physical Properties	Metric	English	Comments

Density	1.81 g/cc	0.0654 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	70	70	500 kg load, 10 mm ball
Hardness, Knoop	93	93	Estimated from Brinell
Hardness, Rockwell E	77	77
Hardness, Vickers	80	80	Estimated from Brinell
Tensile Strength, Ultimate	275 MPa	39900 psi
Tensile Strength, Yield	145 MPa @Strain 0.2 %	21000 psi @Strain 0.2 %
Elongation at Break	6.0 %	6.0 %	in 50 mm
Tensile Modulus	44.8 GPa	6500 ksi
Compressive Yield Strength	130 MPa	18900 psi	at 0.2% offset
Ultimate Bearing Strength	515 MPa	74700 psi
Bearing Yield Strength	360 MPa	52200 psi
Poissons Ratio	0.35	0.35
Fatigue Strength	85.0 MPa @# of Cycles 5.00e+8	12300 psi @# of Cycles 5.00e+8	R.R. Moore Test
Shear Modulus	17.0 GPa	2470 ksi
Charpy Impact	1.40 J	1.03 ft-lb	V-Notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000129 ohm-cm	0.0000129 ohm-cm	(AZ91C-T6)

Thermal Properties	Metric	English	Comments
Heat of Fusion	373 J/g	160 BTU/lb
CTE, linear	26.0 µm/m-°C @Temperature 25.0 °C	14.4 µin/in-°F @Temperature 77.0 °F
	27.2 µm/m-°C @Temperature 20.0 - 200 °C	15.1 µin/in-°F @Temperature 68.0 - 392 °F
Specific Heat Capacity	1.047 J/g-°C	0.2502 BTU/lb-°F
Thermal Conductivity	72.7 W/m-K	505 BTU-in/hr-ft²-°F
Melting Point	>= 421 °C	>= 790 °F	Incipient Melting
Solidus	470 °C	878 °F
Liquidus	595 °C	1100 °F

Processing Properties	Metric	English	Comments
Casting Temperature	650 - 815 °C	1200 - 1500 °F	Permanent Mold Casting
	705 - 845 °C	1300 - 1550 °F	Sand Casting

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

References for this datasheet.

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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MMAZ93 / 12339

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