Magnesium AZ91C-F, Cast

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Magnesium AZ91C-F, Cast
Categories:	Metal; Nonferrous Metal; Magnesium Alloy
Material Notes:	AZ91A, B, C, D, and E have the same nominal composition but differ in ranges and/or specified impurity limits. This alloy is used in sand cast and permanent-mold castings when maximum corrosion resistance is not required.
Key Words:	UNS M11914; Mg; European EN 1753 MC 21120; AMS 4490; ASTM B 80; ASTM B 403; SAE J465; Old SAE 504 (Ingot UNS M11915)
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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	63	63	500 kg load, 10 mm ball
Hardness, Knoop	84	84	Estimated from Brinell
Hardness, Rockwell E	66	66
Hardness, Vickers	71	71	Estimated from Brinell
Tensile Strength, Ultimate	165 MPa	23900 psi
Tensile Strength, Yield	97.0 MPa @Strain 0.2 %	14100 psi @Strain 0.2 %
Elongation at Break	2.5 %	2.5 %	in 50 mm
Tensile Modulus	45.0 GPa	6530 ksi
Compressive Yield Strength	97.0 MPa	14100 psi	at 0.2% offset
Ultimate Bearing Strength	410 MPa	59500 psi
Bearing Yield Strength	275 MPa	39900 psi
Poissons Ratio	0.35	0.35
Fatigue Strength	55.0 MPa @# of Cycles 1.00e+8	7980 psi @# of Cycles 1.00e+8	Notched Fatigue, Rotating Beam, R=-1, Notched, Sand cast
	60.0 MPa @# of Cycles 1.00e+7	8700 psi @# of Cycles 1.00e+7	Unnotched Fatigue, Krouse plate bending, R=-1, Sand cast
	70.0 MPa @# of Cycles 1.00e+6	10200 psi @# of Cycles 1.00e+6	Notched Fatigue, Rotating Beam, R=-1, Notched, Sand cast
	75.0 MPa @# of Cycles 1.00e+6	10900 psi @# of Cycles 1.00e+6	Unnotched Fatigue, Krouse plate bending, R=-1, Sand cast
	85.0 MPa @# of Cycles 100000	12300 psi @# of Cycles 100000	Unnotched Fatigue, Krouse plate bending, R=-1 , Sand cast
	85.0 MPa @# of Cycles 1.00e+8	12300 psi @# of Cycles 1.00e+8	Notched Fatigue, Rotating Beam, R=-1, Smooth, Sand cast
	80.0 - 95.0 MPa @# of Cycles 5.00e+8	11600 - 13800 psi @# of Cycles 5.00e+8	R.R. Moore Test
	95.0 MPa @# of Cycles 1.00e+7	13800 psi @# of Cycles 1.00e+7	Notched Fatigue, Rotating Beam (R=-1), Smooth, Sand cast
	105 MPa @# of Cycles 1.00e+6	15200 psi @# of Cycles 1.00e+6	Notched Fatigue, Rotating Beam, R=-1, Smooth, Sand cast
	110 MPa @# of Cycles 1.00e+6	16000 psi @# of Cycles 1.00e+6	Notched Fatigue, Rotating Beam, R=-1, Smooth, Sand cast
Shear Modulus	17.0 GPa	2470 ksi
Charpy Impact	0.790 J	0.583 ft-lb	V-notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000143 ohm-cm	0.0000143 ohm-cm	AZ91D-F

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	0.800 J/g-°C @Temperature 20.0 °C	0.191 BTU/lb-°F @Temperature 68.0 °F
Thermal Conductivity	72.7 W/m-K	505 BTU-in/hr-ft²-°F
Melting Point	>= 420 °C	>= 788 °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	<= 0.10 %	<= 0.10 %
Magnesium, Mg	90 %	90 %	As Remainder
Manganese, Mn	>= 0.13 %	>= 0.13 %
Nickel, Ni	<= 0.010 %	<= 0.010 %
Silicon, Si	<= 0.30 %	<= 0.30 %
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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MMAZ91CF / 12336

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