Magnesium Elektron Elektron® 21 Magnesium Casting Alloy

Category	Metal , Nonferrous Metal , Magnesium Alloy
Manufacturer	Magnesium Elektron
Trade Name	Elektron®
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Magnesium Elektron Elektron® 21 Magnesium Casting Alloy.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

Fully heat treatable alloy for use up to 400°F. Excellent corrosion resistance and castability. Cast products possess a fine-grained microstructure and pressure tightness. Easily machined. Usual Mg surface treatments may be applied. Uses include motorsports and aerospace.

Physical Properties	Metric	English	Comments
Density	1.82 g/cc	0.0658 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	65 - 75	65 - 75
Tensile Strength	>= 248 MPa	>= 36000 psi	Minimum design value
	179 MPa @Temperature 260 °C	26000 psi @Temperature 500 °F	Typical
	241 MPa @Temperature 191 °C	35000 psi @Temperature 375 °F	Typical
	262 MPa @Temperature 121 °C	38000 psi @Temperature 250 °F	Typical
	270 MPa @Temperature -35.0 °C	39200 psi @Temperature -31.0 °F	Typical
	280 MPa @Temperature 22.2 °C	40600 psi @Temperature 72.0 °F
Tensile Strength, Yield	145 MPa @Strain 0.200 %, Temperature 260 °C	21000 psi @Strain 0.200 %, Temperature 500 °F	Typical
	>= 145 MPa @Strain 0.200 %, Temperature 22.2 °C	>= 21000 psi @Strain 0.200 %, Temperature 72.0 °F	Minimum design value
	159 MPa @Strain 0.200 %, Temperature 191 °C	23000 psi @Strain 0.200 %, Temperature 375 °F	Typical
	165 MPa @Strain 0.200 %, Temperature 121 °C	24000 psi @Strain 0.200 %, Temperature 250 °F	Typical
	170 MPa @Strain 0.200 %, Temperature 22.2 °C	24700 psi @Strain 0.200 %, Temperature 72.0 °F	Typical
Elongation at Break	>= 2.0 %	>= 2.0 %	Minimum design value
	5.0 %	5.0 %	Typical
	7.0 % @Temperature -35.0 °C	7.0 % @Temperature -31.0 °F	Typical
Creep Strength	82.7 MPa @Temperature 204 °C, Time 1.98e+6 sec	12000 psi @Temperature 400 °F, Time 550 hour	0.1% creep strain
	96.5 MPa @Temperature 204 °C, Time 360000 sec	14000 psi @Temperature 400 °F, Time 100 hour	0.1% creep strain
	117 MPa @Temperature 204 °C, Time 234000 sec	17000 psi @Temperature 400 °F, Time 65.0 hour	0.1% creep strain
Modulus of Elasticity	44.1 GPa	6400 ksi
Compressive Yield Strength	168 MPa @Strain 0.200 %	24400 psi @Strain 0.200 %	Typical
Compressive Strength	367 MPa	53200 psi	Typical
Poissons Ratio	0.27	0.27
Fatigue Strength	115 - 120 MPa @# of Cycles 5.00e+7	16700 - 17400 psi @# of Cycles 5.00e+7	Push-Pull; R = 0.1
Fracture Toughness	14.9 MPa-m½	13.6 ksi-in½	K<sub>IC</sub>
Shear Modulus	17.4 GPa	2520 ksi	Calculated
Shear Strength	172 MPa	25000 psi
Charpy Impact	1.7 J @Temperature -35.0 °C	1.3 ft-lb @Temperature -31.0 °F	Notched

Thermal Properties	Metric	English
CTE, linear	26.6 µm/m-°C	14.8 µin/in-°F
Specific Heat Capacity	1.00 J/g-°C	0.240 BTU/lb-°F
Thermal Conductivity	116 W/m-K	804 BTU-in/hr-ft²-°F
Melting Point	545.0 - 640.0 °C	1013 - 1184 °F
Solidus	545.0 °C	1013 °F
Liquidus	640.0 °C	1184 °F
Maximum Service Temperature, Air	204 °C	400 °F

Component Elements Properties	Metric	English	Comments
Gadolinium, Gd	1.0 - 1.7 %	1.0 - 1.7 %
Magnesium, Mg	94.7 - 96.2 %	94.7 - 96.2 %	as balance; includes saturation of Zr
Neodymium, Nd	2.6 - 3.1 %	2.6 - 3.1 %
Zinc, Zn	0.20 - 0.50 %	0.20 - 0.50 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000946 ohm-cm	0.00000946 ohm-cm

Processing Properties	Metric	English	Comments
Solution Temperature	520 °C @Time 28800 sec	968 °F @Time 8.00 hour	Follow with hot quench and aging
Aging Temperature	200 °C @Time 57600 sec	392 °F @Time 16.0 hour	Follow with air cool

Descriptive Properties	Value	Comments
Corrosion Resistance	10 - 30 mpy	ASTM B117 salt spray

Users viewing this material also viewed the following: