close
Choose Your Site
Global
Social Media
 |
| Quantity: | |
|---|---|
Neodymium Metal (Nd) is a silvery-gray rare-earth metal celebrated for its role in creating the strongest permanent magnets available, alongside its versatility in high-tech alloys. With a CAS number of 7440-00-8 and an atomic weight of 144.24 g/mol, this metal offers purity levels of 99.9%-99.99% (4N), featuring a melting point of 1024°C and a density of 7.00 g/cm³. Its unique combination of high magnetic moment and alloying ability makes it indispensable in modern electrification and renewable energy systems.
1. Exceptional Magnetic Properties: When alloyed with iron and boron (Nd-Fe-B), it produces magnets with coercivity up to 16 kOe, enabling compact motor designs in electric vehicles and wind turbines.
2. Fine-Grain Structure Control: Available in rapidly solidified forms to prevent grain coarsening, enhancing mechanical durability in high-vibration environments.
3. Surface Oxide Management: Protected by a thin Nd₂O₃ layer that can be passivated or removed, allowing precise control over bonding in magnetic assemblies.
4. Low Gas Content: Vacuum melting processes reduce oxygen and nitrogen levels to <50 ppm, critical for maintaining magnetic stability at low temperatures.
5. Machining Versatility: Ductile enough for cold working into wires and sheets, while also suitable for casting in complex geometries for specialized applications.
• Permanent Magnets: Core material in Nd-Fe-B magnets for electric vehicle traction motors, offering 30% higher energy density than older samarium-cobalt alternatives.
• High-Temperature Alloys: Added to titanium alloys (e.g., Ti-6Al-4V) to improve creep resistance in aircraft engine components operating at 500-600°C.
• Electromagnetic Devices: Used in voice coils and actuators for hard disk drives, enabling high-speed data access with minimal energy loss.
• Research & Development: Serves as a dopant in neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers, generating high-power pulses for material cutting and medical surgery.
• Corrosion-Resistant Coatings: Deposited as a protective layer on steel components in marine environments, leveraging its sacrificial anode properties to prevent rust.
Q: Why is Neodymium Metal often coated before use in magnets?
A: To protect against moisture-induced corrosion, which can degrade magnetic performance; common coatings include nickel, zinc, and epoxy.
Q: What is the difference between 3N and 4N purity grades?
A: 4N-grade (99.99%) has lower levels of iron, copper, and other transition metals, resulting in higher magnetic purity and reduced eddy current losses.
Q: Can it be recycled from end-of-life products?
A: Yes, recycling processes recover up to 95% of neodymium from spent magnets, supporting circular economy initiatives in the electronics and automotive sectors.
Q: How does temperature affect the magnetic properties of Nd-based alloys?
A: Maximum operating temperature is ~150°C for standard grades, but high-temperature variants (with dysprosium addition) can withstand up to 220°C.
Q: What safety measures are required for handling the metal?
A: Use gloves and eye protection to avoid skin contact; store in moisture-free environments as fine particles may ignite in air when heated.
Material name | Neodymium metal |
Formula | Nd |
CAS No. | 7440-00-8 |
EINECS NO. | 231-109-3 |
Molecular Weight | 144.24 |
Density | 7.01g/cm3 |
Melting point | 1024°C |
Bolting point | 3127°C |
Appearance | Silver white ingot or lump, or other customized size |
Purity/Specification (Nd/REM) | 99%-99.99% |
Purity | 2N | 2N | 2N5 | 3N | |
TREM%min. | 98.5 | 99 | 99 | 99.5 | |
NdTREM%min. | 99 | 99 | 99.5 | 99.9 | |
Rare earth impurities %max | Total 1 | Total 1 | Total 0.5 | Total 0.1 | |
Non rare earth | C | 0.05 | 0.05 | 0.03 | 0.03 |
Fe | 1 | 0.5 | 0.3 | 0.2 | |
Si | 0.05 | 0.05 | 0.05 | 0.03 | |
Mg | 0.03 | 0.02 | 0.02 | 0.01 | |
Ca | 0.03 | 0.02 | 0.02 | 0.01 | |
Al | 0.05 | 0.05 | 0.05 | 0.03 | |
0 | 0.05 | 0.05 | 0.05 | 0.03 | |
Mo | 0.05 | 0.05 | 0.05 | 0.03 | |
W | 0.05 | 0.05 | 0.05 | 0.02 | |
Cl | 0.03 | 0.02 | 0.02 | 0.01 | |
S | 0.01 | 0.01 | 0.01 | 0.01 | |
P | 0.05 | 0.05 | 0.03 | 0.01 | |
Neodymium Metal (Nd) is a silvery-gray rare-earth metal celebrated for its role in creating the strongest permanent magnets available, alongside its versatility in high-tech alloys. With a CAS number of 7440-00-8 and an atomic weight of 144.24 g/mol, this metal offers purity levels of 99.9%-99.99% (4N), featuring a melting point of 1024°C and a density of 7.00 g/cm³. Its unique combination of high magnetic moment and alloying ability makes it indispensable in modern electrification and renewable energy systems.
1. Exceptional Magnetic Properties: When alloyed with iron and boron (Nd-Fe-B), it produces magnets with coercivity up to 16 kOe, enabling compact motor designs in electric vehicles and wind turbines.
2. Fine-Grain Structure Control: Available in rapidly solidified forms to prevent grain coarsening, enhancing mechanical durability in high-vibration environments.
3. Surface Oxide Management: Protected by a thin Nd₂O₃ layer that can be passivated or removed, allowing precise control over bonding in magnetic assemblies.
4. Low Gas Content: Vacuum melting processes reduce oxygen and nitrogen levels to <50 ppm, critical for maintaining magnetic stability at low temperatures.
5. Machining Versatility: Ductile enough for cold working into wires and sheets, while also suitable for casting in complex geometries for specialized applications.
• Permanent Magnets: Core material in Nd-Fe-B magnets for electric vehicle traction motors, offering 30% higher energy density than older samarium-cobalt alternatives.
• High-Temperature Alloys: Added to titanium alloys (e.g., Ti-6Al-4V) to improve creep resistance in aircraft engine components operating at 500-600°C.
• Electromagnetic Devices: Used in voice coils and actuators for hard disk drives, enabling high-speed data access with minimal energy loss.
• Research & Development: Serves as a dopant in neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers, generating high-power pulses for material cutting and medical surgery.
• Corrosion-Resistant Coatings: Deposited as a protective layer on steel components in marine environments, leveraging its sacrificial anode properties to prevent rust.
Q: Why is Neodymium Metal often coated before use in magnets?
A: To protect against moisture-induced corrosion, which can degrade magnetic performance; common coatings include nickel, zinc, and epoxy.
Q: What is the difference between 3N and 4N purity grades?
A: 4N-grade (99.99%) has lower levels of iron, copper, and other transition metals, resulting in higher magnetic purity and reduced eddy current losses.
Q: Can it be recycled from end-of-life products?
A: Yes, recycling processes recover up to 95% of neodymium from spent magnets, supporting circular economy initiatives in the electronics and automotive sectors.
Q: How does temperature affect the magnetic properties of Nd-based alloys?
A: Maximum operating temperature is ~150°C for standard grades, but high-temperature variants (with dysprosium addition) can withstand up to 220°C.
Q: What safety measures are required for handling the metal?
A: Use gloves and eye protection to avoid skin contact; store in moisture-free environments as fine particles may ignite in air when heated.
Material name | Neodymium metal |
Formula | Nd |
CAS No. | 7440-00-8 |
EINECS NO. | 231-109-3 |
Molecular Weight | 144.24 |
Density | 7.01g/cm3 |
Melting point | 1024°C |
Bolting point | 3127°C |
Appearance | Silver white ingot or lump, or other customized size |
Purity/Specification (Nd/REM) | 99%-99.99% |
Purity | 2N | 2N | 2N5 | 3N | |
TREM%min. | 98.5 | 99 | 99 | 99.5 | |
NdTREM%min. | 99 | 99 | 99.5 | 99.9 | |
Rare earth impurities %max | Total 1 | Total 1 | Total 0.5 | Total 0.1 | |
Non rare earth | C | 0.05 | 0.05 | 0.03 | 0.03 |
Fe | 1 | 0.5 | 0.3 | 0.2 | |
Si | 0.05 | 0.05 | 0.05 | 0.03 | |
Mg | 0.03 | 0.02 | 0.02 | 0.01 | |
Ca | 0.03 | 0.02 | 0.02 | 0.01 | |
Al | 0.05 | 0.05 | 0.05 | 0.03 | |
0 | 0.05 | 0.05 | 0.05 | 0.03 | |
Mo | 0.05 | 0.05 | 0.05 | 0.03 | |
W | 0.05 | 0.05 | 0.05 | 0.02 | |
Cl | 0.03 | 0.02 | 0.02 | 0.01 | |
S | 0.01 | 0.01 | 0.01 | 0.01 | |
P | 0.05 | 0.05 | 0.03 | 0.01 | |
