Magnesium Elektron Elektron® WE43B Magnesium Casting Alloy, UNS M18430

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Magnesium Elektron Elektron® WE43B Magnesium Casting Alloy, UNS M18430
Categories:	Metal; Nonferrous Metal; Magnesium Alloy
Material Notes:	ELEKTRON WE43B is a high strength magnesium based casting alloy developed and patented by Magnesium Elektron for use at temperatures up to 300°C. This alloy system maintains its good mechanical properties at elevated temperatures, without the use of either silver or thorium. The alloy is stable for long term exposure up to 250°C. ELEKTRON WE43B has excellent corrosion resistance characteristics. Applications: The excellent retention of properties at elevated temperatures will be of interest to designers of aeroengines and other power systems, helicopter transmissions, missiles, racing and high performance cars. Information provided by Magnesium Elektron.
Key Words:	UNS M18430; ASTM B80; AMS 4427; MAM 4427; AECMA MG-C96002; ISO 16220: MC95310
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	Original Value	Comments

Specific Gravity	1.84 g/cc
Bulk Density	0.0665 lb/in³	Value supplied by MatWeb

Mechanical Properties	Original Value	Comments
Hardness, Vickers	85 - 105
Tensile Strength at Break	>= 220 MPa	Min Design Specification
	190 MPa @Temperature 300 °C
	250 MPa @Temperature 200 °C
	265 MPa @Temperature 20.0 °C
	270 MPa @Temperature 100 °C
Tensile Strength, Yield	>= 172 MPa @Strain 0.2 %	Min Design Specification
	140 MPa @Strain 0.2 %, Temperature 300 °C
	134 - 193 MPa @Strain 0.2 %, Temperature 250 °C
	170 MPa @Strain 0.2 %, Temperature 200 °C
	180 MPa @Strain 0.2 %, Temperature 100 °C
	185 MPa @Strain 0.2 %, Temperature 20.0 °C
Elongation at Break	>= 2.0 %	Min Design Specification
	7.0 % @Temperature 22.0 °C
	10 % @Temperature 100 °C
	12 % @Temperature 200 °C
	2.0 - 36 % @Temperature 250 °C
	37 % @Temperature 300 °C
Modulus of Elasticity	45.0 GPa
Compressive Yield Strength	187 MPa @Strain 0.2 %
Compressive Strength	323 MPa
Poissons Ratio	0.27
Fatigue Strength	80.0 MPa @# of Cycles 1.00e+8	Rotating bend
	85.0 MPa @# of Cycles 5.00e+7	Unnotched Rotating Bend
	85.0 MPa @# of Cycles 1.00e+7	Rotating bend
	90.0 MPa @# of Cycles 1.00e+6	Rotating bend
Fracture Toughness	15.9 MPa-m½	K_IC
Shear Strength	160 MPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000148 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	26.7 µm/m-°C
Specific Heat Capacity	0.966 J/g-°C
Thermal Conductivity	51.0 W/m-K
Melting Point	540 - 640 °C
Solidus	540 °C
Liquidus	640 °C
Maximum Service Temperature, Air	250 °C	long term
	300 °C
Shrinkage	1.5 %	Pattern Makers Shrinkage Factor

Component Elements Properties	Original Value	Comments
Magnesium, Mg	91.3 - 93.5 %	As Balance
Rare Earths	2.4 - 4.4 %
Yttrium, Y	3.7 - 4.3 %
Zirconium, Zr	>= 0.40 %

Descriptive Properties
Corrosion rate	10 mpy	ASTM B117 Salt spray test
Damping Index	0.09

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 go back to viewing the property data in MatWeb's normal format.

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