Magnesium AZ92A-T7, Cast

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Magnesium AZ92A-T7, Cast
Categories:	Metal; Nonferrous Metal; Magnesium Alloy
Material Notes:	A, B, C, D, and E Have the same nominal composition but differ in ranges and/or specified impurity limits. Sand Casting: AMS 4434, ASTM B 80; Investment Casting: AMS 4453, ASTM B 403; Permanent Mold Casting: AMS 4484, ASTM B 199; Typically used for commercial and military pressure-tight sand and permanent-mold castings having high tensile strength and good yield strength.
Key Words:	UNS M11920; Mg; SAE J465; Old SAE 500; AMS 4434; AMS 4453; AMS 4484; ASTM B 80; ASTM B 199; ASTM B 403 (Ingot UNS M11921)
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Physical Properties	Metric	English	Comments

Density	1.83 g/cc	0.0661 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	78	78	500 kg load, 10 mm ball
Hardness, Knoop	101	101	Estimated from Brinell
Hardness, Rockwell E	86	86
Hardness, Vickers	88	88	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	3.0 %	3.0 %	in 50 mm
Tensile Modulus	45.0 GPa	6530 ksi
Compressive Yield Strength	145 MPa	21000 psi	at 0.2% offset
Poissons Ratio	0.35	0.35
Fatigue Strength	90.0 MPa @# of Cycles 5.00e+8	13100 psi @# of Cycles 5.00e+8	R.R. Moore Test
Machinability	100 %	100 %	Relative Rating, 100=Best
Shear Modulus	17.0 GPa	2470 ksi
Shear Strength	150 MPa	21800 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000124 ohm-cm	0.0000124 ohm-cm	(-T6 Temper)

Thermal Properties	Metric	English	Comments
Heat of Fusion	373 J/g	160 BTU/lb
CTE, linear	26.0 µm/m-°C @Temperature 0.000 - 100 °C	14.4 µin/in-°F @Temperature 32.0 - 212 °F
	27.2 µm/m-°C @Temperature 20.0 - 200 °C	15.1 µin/in-°F @Temperature 68.0 - 392 °F
Specific Heat Capacity	1.05 J/g-°C	0.251 BTU/lb-°F
Thermal Conductivity	58.3 W/m-K	405 BTU-in/hr-ft²-°F	(-T6 Temper)
Melting Point	>= 410 °C	>= 770 °F	Incipient Melting
Solidus	445 °C	833 °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	8.3 - 9.7 %	8.3 - 9.7 %
Copper, Cu	<= 0.25 %	<= 0.25 %
Magnesium, Mg	89 %	89 %	As Remainder
Manganese, Mn	>= 0.10 %	>= 0.10 %
Nickel, Ni	<= 0.010 %	<= 0.010 %
Silicon, Si	<= 0.30 %	<= 0.30 %
Zinc, Zn	1.6 - 2.4 %	1.6 - 2.4 %

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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MMAZ9B / 12348

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