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Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

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Ring Sintered Sm2Co17 magnets 

Price: 0.01~10.0 USD 
Payment Terms: T/T,L/C,WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: RM-S07
Production Capacity: 100TON/MONTH
Delivery Date: 7-30days
Shape: Coil
Composite: Rare Earth Magnet
Means of Transport: Ocean,Air;experess
Packing: standard air cartons or sea...
Application: Motor Magnet
Type: Permanent
Brand Name: rainbow magnet

The Curie temperature is high to 840-870 degrees,higher than Smco5.
The disadvantage is that the process is complex with high costs.

Ring Sm2co17 magnets



Samarium cobalt magnets are composed of samarium, cobalt and iron.These rare earth magnets are extremely strong for their small size,metallic in appearance and found in simple shapes such as rings,blocks and discs.
According the composition,we divide two of SMCO: Sm2CO17 and SmCo5
According the process,we divide to sintered Smco and bonded Smco

Ring Sm2co17 magnets are made of metal samarium,cobalt,copper,iron,zirconium,according percentage to melting,grinding,profiling,sintering,aging,and make ​of various grades,shapes and sizes.
The (BH)max between 20-32,the maximum operating temperature can be reached 350 °C,the 2:17 has a low temperature coefficient (-0.02% / ℃) and good corrosion resistance,magnetic properties is more than NdFeB magnets when in high working temperatures.
Sm2co17: not only has a high intrinsic saturation magnetic inductio.but also good anti-oxidation.
Applications
aerospace fields
military fields
high temperature motor
automotive sensors
variety of magnetic drive
magnetic drive pump
microwave devices
Computer disc drives
Sensors
Radar
Traveling wave tubes
Satellite systems
Motors where temporary stability is vital

Compare of Ring Sm2co17 magnets and SmCo5 auxiliary magnetic and physical properties
Item
Parameters
SmCo5
Sm2Co17
Auxiliary magnetic properties
Temp. coefficient of Br (α(Br))/%/ K-1
-0.05
-0.03
Temp. coefficient. of Hcj (α(Hcj)/%/ K-1
-0.3
-0.3
Curie Temperature (Tc)/K
1000
1000
Recoil Permeability (μrec)
1.05
1.10
physical properties
Density (g/cm-3)
8.2
8.4
Vickers Hardness
Hv/MPa
450
650
Electrical Resistivity
(ρ/Ω•.cm)
5.3x10-5
8.5x10-5
Compressive Strengthδc/MPa
1000
800
Tensile Strength
δb/ MPa
400
350
Bending Strength
δw/MPa
180
150

the magnetic properties of rare earth magnet
item
Js/T
(BH)m
/KJ.m-3
HA
/MA.m-1
Tc/℃
RE/TM
TM
SmCo5
1.15
248
32
740
0.166
Co
Sm2Co17
1.56
480
8
890
0.105
Co
Nd2Fe14B
1.61
528
6
310
0.117
Fe

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Tel: 86-574-87840198
Fax: 86-574-87393806
Mobile: 86- 189 5744 9606
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Company Info

Rainbow Magnet Ltd. [China (Mainland)]


Business Type:Manufacturer
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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