Magnesium Rare Earth Alloy

• Application: Spaceflight
• Certification: RoHS, ISO9001, JIS, EN
• Technique: Hot Rolled
• Grade: --
• Temper: --
• Surface Treatment: Mill Finish
• Alloy: Alloy
• Transport Package: Export Standard Wooden Pallet
• Specification: According to Customer Requirement
• Trademark: Chalco Aluminum
• Origin: Henan China
• HS Code: 7606125900
• Production Capacity: 15000mt/Month

Product Description

Magnesium rare earth alloy

Advantages of magnesium rare earth alloy:
1. High specific strength-After aging, the room temperature tensile strength can reach more than 430MPa, and the specific strength can reach more than 220 MPa/(g·cm-3). It can replace some high-strength aluminum alloy materials in the aerospace field. It can completely replace 2A12 (166 MPa/(g·cm-3)) aluminum alloy.
The room temperature tensile strength of cast magnesium rare earth alloys can reach 320MPa or more, which is comparable to ZL114A (strength 320MPa, elongation 3%) commonly used in aviation, and it makes up for the low strength and poor plasticity of conventional cast magnesium alloys.
2. Good heat resistance-the tensile strength of some high-strength magnesium rare earth alloys at 300°C can still reach 200MPa, which is far better than the heat resistance of aviation aluminum alloy (300°C, 7075 tensile strength is about 60MPa);
3. High damping-impact resistance is 10 times that of aluminum alloy and 20 times that of plastics. It can play an important role in reducing equipment failure rate, reducing characteristic signals, improving equipment combat effectiveness and battlefield survivability.
4. Excellent welding performance-inhibits the generation of looseness and cracks and reacts with gas, reducing the generation of pores.
5. Superplasticity-The elongation rate of superplastic sheet is as high as 500%, which provides support for the formation of aircraft skins and other complex shape components.
6. Good flame retardancy and corrosion resistance-purify the melt to improve the overall corrosion resistance; inhibit the cathodic reaction, reduce electrochemical corrosion, and improve the corrosion resistance and flame retardancy of the alloy.

High-strength heat-resistant magnesium rare earth alloys are mainly used in aviation, aerospace and weaponry fields that have strong weight reduction requirements and must withstand changes in space temperature, including cockpit frames, nose covers, door frames, ribs, beams, missile pylons, and missile cabins Body, engine engine, cylinder and gearbox housing and other parts.

Magnesium rare earth alloy chemical composition

Alloy	Chemical composition/wt.%								Executive standard
	Al	Mn	Zn	Zr	Y	RE	Gd	Mg
ZE61	-	-	5.5~6.5	≥0.3	-	1.5-2.5	-	-	-
MB22	-	-	1.2-1.6	0.45-0.8	2.9-3.5	-	-	-	-
MB25	-	-	5.5~6.5	≥0.45	0.7~1.7	-	-	Margin	GJB 5154
MB26	-	-	5.5~6.5	≥0.3	-	0.6~1.4	-	Margin	GJB 5154
AE80	7.5-8.5	0.1-0.4	0.2-0.8	-	-	0.2-0.5	-	Margin	-
WE43	-	<0.03	<0.2	≥0.4	3.7~4.3	2.4~4.4	-	Margin	GB/T5153
WE54	-	<0.03	<0.06	0.4~1.0	4.7~5.5	3.4~5.4	-	Margin	GB/T5153
VW63	-	-	-	0.3-1.0	2.5-3.7	-	5.0-6.4	Margin	QJ 20708
VW94	-	-	0-2	≥0.4	3.0~7.0	-	7.0~12.0	Margin	-

Magnesium rare earth alloy mechanical properties

Alloy	Density/g•cm-3	Test temperature /ºC	Tensile strength Rm /MPa	Yield Strength Rp0.2 /MPa	Elongation after breaking A /%	Elastic Modulus /GPa	Executive standard
ZE61	1.84	RT	290-340	230-280	6-12	About 45	-
MB22	1.79	RT	245-275	155-220	7-10	About 43	-
		250	165-195	130-155	17-23	-
MB25	1.85	RT	305-355	225-285	6-10	About 44	GJB 5154
		150	185-205	135-155	35-45	-
		200	105-155	90-105	40-60
		250	95-115	85-95	45-65
MB26	1.84	RT	325-345	240-280	6-10		GJB 5154
		250	100-125	80-100	20-45	-
AE80	1.82	RT	340-370	250-270	6-10	About 44	-
		150	170-190	120-140	25-45	-	-
WE43	1.84	RT	280-360	160-250	5-8	About 44	ASTM B80 ISO 3116
		200	175-200	120-135	9-12	-
WE54	1.85	RT	260-340	175-230	5-8	About 45	ASTM B80 ISO 3116
		200	180-210	140-160	9-12	-
VW63	1.91	RT	230-340	170-260	5-12	-	QJ 20708
VW94	1.95	RT	290-400	180-270	4-7	About 45	-
		150	250-350	190-300	8-11	-
Note: The above properties without special instructions are the properties of rolled plates

Magnesium rare earth alloy application characteristics
 

Alloy	Material type	Material characteristics and typical uses
ZE61	Plates, forgings,bar	Achieve high room temperature tensile strength and yield strength at a lower cost, and is suitable for occasions where there is an urgent need for weight reduction and higher strength requirements.
MB22	Plates	Mg-Y-Zn-Zr series of wrought magnesium alloys are mainly made into sheets, with good forming and welding properties, and no stress corrosion tendency. It is recommended to be used for short-term aerospace structural parts below 300ºC.
MB25	Forgings, bars	Plasticity, toughness and corrosion resistance are similar to those of MB15, with good cutting performance and poor welding performance. It can replace some medium-strength aluminum alloys for aircraft load-bearing components.
MB26	Plates, forgings,bar	This alloy replaces Y in MB25 with Y-rich mixed rare earths. The price is lower and the performance difference is not big. It can also be applied to aircraft parts.
AE80	Plates, forgings, bar	The alloy is improved based on AZ80M. By adding rare earth elements, the room temperature and high temperature properties of the alloy are improved, and it can be used to prepare aircraft engine parts.
WE43	Castings, plates	It has good tensile performance, creep resistance and fatigue resistance at room temperature and high temperature, and can be used in vibration, sand and dust, high temperature, etc.
WE54	Plates, forgings, Extrusion	Serve in a harsh environment. It can be applied to aircraft parts such as aircraft engine gearboxes and helicopter gearboxes.
VW63	Plates, forgings, Extrusion	Mg-Gd-Y is a heat-resistant magnesium alloy with good room temperature and high temperature performance, and has great application potential in aircraft.
VW94	Plates, forgings, Extrusion	The high-strength heat-resistant magnesium rare earth alloy has a tensile strength of more than 200MPa at 300°C, and its heat resistance is far better than aviation aluminum alloy. It is mainly used in the aerospace and weaponry fields that have strong weight reduction requirements and must withstand changes in space temperature, including cockpit skeletons, nose covers, door frames, ribs, beams, missile pylons, missile cabins and other parts.

Magnesium rare earth alloy supply size and temper
 

Product type	Temper	Dimensions
Plate (rolling)	F(R),O(M),H112(R),H18(Y),H24(Y2)	(≥0.4)×(≤1200)×L mm
Plate (extruded)	F(R),T5(S)	(≤50)×(≤400)×L mm
Bar (extruded)	H112(R),T5(S)	Ф≤200mm
Forging	F(R),T5(S)	Customer request size
Sand castings & precision castings	-	According to the technical requirements of the drawings
Special size specifications can be customized according to customer needs