Magnesium Elektron Elektron® QE22 Magnesium Casting Alloy, UNS M18220

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Magnesium Elektron - Service & Innovation in Magnesium

Magnesium Elektron Elektron® QE22 Magnesium Casting Alloy, UNS M18220
Categories:	Metal; Nonferrous Metal; Magnesium Alloy
Material Notes:	ELEKTRON QE22 is a high strength magnesium casting alloy developed by Magnesium Elektron to have good ambient and elevated temperature properties whilst retaining good foundry characteristics. It is a fully heat treatable magnesium alloy containing silver and rare earth metals. It is pressure tight, weldable and may be used up to temperatures of 200°C. Applications: The alloys will be of interest to designers requiring good retention of properties at elevated temperatures for aerospace, automotive and military applications. Information provided by Magnesium Elektron.
Key Words:	AECMA MG-C-51; AFNOR G-Ag2.5TR; MOD DTD 5035A; UNS M18220; ISO 16220 MC65210
Vendors:	Magnesium Elektron is the world leader in high strength magnesium alloys in rolled, extruded and cast forms. Phone (303) 589-3189 or visit www.magnesium-elektron.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.81 g/cc	1.81 g/cc
Bulk Density	1.82 g/cc	0.0658 lb/in³	Value supplied by MatWeb

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	80 - 105	80 - 105
Tensile Strength at Break	>= 240 MPa	>= 34800 psi	Min Design Specification
	266 MPa @Temperature 20.0 °C	38600 psi @Temperature 68.0 °F
Tensile Strength, Yield	>= 175 MPa @Strain 0.1 %	>= 25400 psi @Strain 0.1 %	Min Design Specification
	205 MPa @Strain 0.2 %, Temperature 20.0 °C	29700 psi @Strain 0.2 %, Temperature 68.0 °F
Elongation at Break	>= 2.0 %	>= 2.0 %	Min Design Specification
	4.0 % @Temperature 22.0 °C	4.0 % @Temperature 71.6 °F	in 5.65 A^½
Modulus of Elasticity	44.1 GPa	6400 ksi
Compressive Yield Strength	165 - 200 MPa @Strain 0.2 %	23900 - 29000 psi @Strain 0.2 %
Compressive Strength	310 - 385 MPa	45000 - 55800 psi
Poissons Ratio	0.30	0.30
Fatigue Strength	60.0 - 70.0 MPa @# of Cycles 5.00e+7	8700 - 10200 psi @# of Cycles 5.00e+7	Rotating bend; semi-circular notch, radius 1.2 mm
	90.0 - 100 MPa @# of Cycles 5.00e+7	13100 - 14500 psi @# of Cycles 5.00e+7	Rotating bend
	100 - 110 MPa @# of Cycles 5.00e+7	14500 - 16000 psi @# of Cycles 5.00e+7	Unnotched Rotating Bend
Fracture Toughness	14.9 MPa-m½	13.6 ksi-in½	K_IC
Shear Strength	152 MPa	22000 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000680 ohm-cm	0.00000680 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	26.7 µm/m-°C	14.8 µin/in-°F
Specific Heat Capacity	1.00 J/g-°C	0.239 BTU/lb-°F
Thermal Conductivity	113 W/m-K	784 BTU-in/hr-ft²-°F
Melting Point	550 - 640 °C	1020 - 1180 °F
Solidus	550 °C	1020 °F
Liquidus	640 °C	1180 °F
Maximum Service Temperature, Air	200 °C	392 °F
Shrinkage	1.3 %	1.3 %	Pattern Makers Shrinkage Factor

Component Elements Properties	Metric	English	Comments
Magnesium, Mg	93.3 - 95.6 %	93.3 - 95.6 %	As Balance
Rare Earths	2.0 - 3.0 %	2.0 - 3.0 %
Silver, Ag	2.0 - 2.7 %	2.0 - 2.7 %
Zirconium, Zr	0.40 - 1.0 %	0.40 - 1.0 %

Descriptive Properties
Corrosion rate	430 mpy		ASTM B117 Salt spray test
Damping Index	0.4

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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NMAGEL904 / 186919

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