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Products List -- SmCo Magnet
Samarium Cobalt holds its standard property in higher maximum temperatures than neodymium,although its maximum strengh is less. The cost of SmCo material is the most expensive, so SmCo is recommended only when its performance is a high temperature environment is a concern. smco magnets, sintered smco magnets
The characteristics of Samarium Cobalt Magnet
*Very high magnetic properties with good stability.
*Superior resistance to high temperature,Curie temperature of majority is over 800??
*Excellent corrosion resistance capability,no coating is needed for surface protection.
 
Typical Magnetic Porperties of Samarium Cobalt Materials

Properties of SmCo Permanent Magnet

Grade Residual Flux DensityBr Coercive Force Hcb Intrinsic Coercive force Hcj Max. energy product (BH)max

mT

kGs kA/m koe kA/m koe kJ/m3 MGoe
smco-YX6 500~600 5.0~6.0 ≥358 4.5~5.5 ≥960 ≥12.0 47~72 6~9
smco-YX10 600~700 6.0~7.0 ≥438 5.5~6.5 ≥1200 ≥15.0 64~88 8~11
smco-YX12 700~750 7.0~7.5 ≥520 6.5~7.3 ≥1591 ≥20.0 96~120 12~15
smco5-YX16 750~880 7.5~8.8 597±40 7.5±0.5 ≥1591 ≥20.0 127±16 16±2
smco-YX16A 750~880 7.5~8.8 597±40 7.5±0.5 ≥1989 ≥25.0 127±16 16±2
smco-YX16B 750~880 7.5~8.8 597±40 7.5±0.5 ≥2386 ≥30.0 127±16 16±2
sm2co17-YX18 800~930 8.0~9.3 637±40 8.0±0.5 ≥1194 ≥15.0 143±16 18±2
smco-YX18A 800~930 8.0~9.3 637±40 8.0±0.5 ≥1591 ≥20.0 143±16 18±2
smco-YX18T 800~930 8.0~9.3 637±40 8.0±0.5 ≥1591 ≥20.0 143±16 18±2
smco-YX18B 800~930 8.0~9.3 637±40 8.0±0.5 ≥1989 ≥25.0 143±16 18±2
sm2co17-YX20 900~980 9.0~9.8 637±40 8.0±0.5 ≥1432 ≥18.0 159±16 20±2
smco-YX20 900~950 9.0~9.5 ≥670 8.5~9.2 ≥1591 ≥20.0 159±16 20±2
smco-YX20A 900~980 9.0~9.8 637±40 8.0±0.5 ≥1989 ≥25.0 159±16 20±2
smco-YX22 900~1030 9.0~10.3 653±40 8.2±0.5 ≥1432 ≥18.0 175±16 22±2
smco-YX22A 900~1030 9.0~10.3 653±40 8.2±0.5 ≥1989 ≥25.0 175±16 22±2
smco-YX24 950~1080 9.5~10.8 676±40 8.2±0.5 ≥1432 ≥18.0 191±16 24±2
smco-YX24A 1000~1100 10.0~11.0 676±40 8.2±0.5 ≥1989 ≥25.0 191±16 24±2
smco-YX26 1000~1130 10.0~11.3 357~516 4.5~6.5 413~556 5.0~7.0 207±16 26±2
YX26A 1000~1130 10.0~11.3 716±40 9.0±0.5 ≥796 ≥10.0 207±16 26±2
YX26B 1000~1130 10.0~11.3 716±40 9.0±0.5 ≥1194 ≥15.0 207±16 26±2
YX26C 1000~1130 10.0~11.3 716±40 9.0±0.5 ≥1591 ≥20.0 207±16 26±2
YX26D 1000~1080 10.0~10.8 ≥732 9.0~10.5 ≥2300 ≥30.0 207±16 26±2
smco-YX28 1060~1180 10.6~11.8 357~516 4.5~6.5 413~556 5.0~7.0 223±16 28±2
smco-YX28A 1060~1180 10.6~11.8 763±40 9.6±0.5 ≥796 ≥10.0 223±16 28±2
smco-YX28B 1050~1150 10.5~11.5 ≥750 9.4~9.8 ≥960 ≥12.0 223±16 28±2
smco-YX28C 1060~1180 10.6~11.8 763±40 9.6±0.5 ≥1194 ≥15.0 223±16 28±2
smco-YX30 1100~1200 11.0~12.0 438~597 5.5~6.5 454~597 5.7~7.5 238±16 30±2
smco-YX30A 1100~1200 11.0~12.0 ≥560 7.0~8.5 ≥716 ≥12.0 238±16 30±2

 
Characteristics & application of SmCo permanent magnet

 
Typical Characteristic Curve for SmCo permanent magnet

TYPE NO.

Binder

Magnet

Material

Br

(mT)

Gs

Hcb

(kA/m)

Oe

Hcj

(kA/m)

Oe

BH(max)

(kJ/m3)

MGOe

Density

(g/cm3)

Usage

PAI-1

Nylon6

AlNiCo

95~105

950~1050

30~35

377~440

50~56

628~704

0.8~1.1

0.1~0.14

2.75~2.85

PCM for TV、Monitor

PAI-2

Nylon6

AlNiCo

44~50

440~500

20~24

251~302

50~56

628~704

0.25~0.35

0.03~0.04

2.0~2.3

PCM for TV、Monitor

smco magnets, sintered smco magnets
 
Characteristics & application of SmCo permanent magnet

1.SmCo permanent magnet has high magnetic energy product andhigh cercive force. Its properties are better than AlNiCo,ferrite permanent magnet. Its max. energy product is up to 239kJ/m3(30MGOe), which is three times of that of AlNiCo8 permanent magnet, eight times of that of ferrite permanent magnet (Y40). So the permanent magnetic component made from SmCo material is small, light and stable in property. It is widely applied to electro acoustic& telecommunication apparatus, electric motors, measure meters, peg-top,electronic watch,microwave apparatus, magnetic mechanism, sensor and other static or dynamic magnetic routes. smco magnets, sintered smco magnets

2.The curie temp. of the SmCopermanent magnet is high and its temp. Coeff.is low. So it is suitable for use at 300, high temp.

3.SmCo permanent magnet is hear and bristle. Its rigidity strength, tensile strength and press strength are low. So it is not suitable for framework.

4.The main ingredient of SmCo permanent magnet is metal cobalt(Co≥Y99.95%). So its price is high.

Reference points for application design of permanent magnet

1.What we stated herein are typical grades of SmCo permanent magnet only. We could meet your requirements for various magnetic properties too

2.For application of permanent magnet at high temp., you need consider the following two important parameters: recoil temp. coeff(αBr) and intrinsic coercive force(Hcj). Recoil temp. coeff. is a parameter to measure the performance of the permanent magnet with the variation of the temp. When the temp come back to the initial value, the magnetic properties of the permanent magnet will reversibly return to the initial condition too. More smaller the temperature coefficient is, more lower the magnetic properties are. In the meantime, with the variation of the temperature, the magnetic properties of permanent magnet can change irreversibly. This is called irreversible loss. The irreversible loss descends with the increase of the intrinsic coercive force. smco magnets, sintered smco magnets

3.The appropriate dimensions of he permanent magnet should be taken into account for the application design. Generally speaking, the demagnetization curve of SmCo permanent magnet is close to a straight line and the difference value between Residual Flux Density Br & coercive force Hcb is relatively small. So we should choose the working point (Pc value) around the Max. energy product, i.e. (BH)max. Thus we could utilize the magnetic energy fully and save the cost greatly. Design reference: 0.5≤Pc≤1.

4.SmCo permanent magnet is a functional material. It is unsuitable for structure part design. So the usual requirement to the tolerance of the dimensions for structure part is not applicable to it. For the detailed tolerance design, please refer to "permanent magnet supply illustration".

5.SmCo permanent magnet has strong anticorruption function. So it needn't similar surface treatment as that of NdFeB magnet. For the surface protect of SmCo permanent magnet, please turn to "surface protect and protect coating of permanent magnet". The coating will add to the cost in turn. smco magnets, sintered smco magnets

 

Typical Demagnetization curve of Injection NdFeB Magnet


Temperature Characteristic Curve Of Injection NdFeB Magnet

 
Bonded SmCo Magnet
 
Inspection standard for permanent magnet
Purchasing Guide
Permanent magnet supply direction
Surface protection and surface coating for the permanent magnet
Quality warranty
Safety principle for manual operation of permanent magnet
 

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