Bonded Discs Sm2co17 Magnet (D-001)

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Model NO.: Smco5-Sm2Co17 Disc
Origin: Ningbo, China
HS Code: 8505111000
Bonded  Discs Sm2Co17 Magnet (D-001)

Samarium Cobalt permanent magnet is widely used second generation high energy material. Using Samarium and Cobalt as its rare earth element, it exhibits high magnetic performance characteristics in energy product and coercive force. There are two compositions of magnets in this family: Sm1Co5 and Sm2Co17. The highest commercially available energy products of Sm2Co17 are in the 30MGOe range.

Features of SmCo Magnets
SmCo magnets are high performance, low temperature coefficient permanent magnets.
Its biggest advantage is high working temperature-300 degree centigrade, this makes Samarium Cobalt an excellent choice for compact designs where high temperature environments may be present.
Good corrosion resistance and no need to be coating, because it is difficult to be eroded and oxidized.
Grinding and slicing can be operated into the desired shape and size.

Application of SmCo Magnets:
SmCo magnet is widely used in motors, watch, transducers, instruments, positional detector, generators, radar, etc.

Warning:
Due to their extremely high magnetic strength and brittle nature, SmCo magnet parts must be handled very carefully to prevent injury to personnel and damage to the magnets. Receiving and assembly personnel must be pre-warned about the dangers of handling these magnet parts.

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Magnetic properties of SmCo5
Material Grade Remanence Coercive Force Intrinsic Coercive Force Max. Curie Max. Temperature Temperature
energy product Temperature Operating Coefficient Coefficient


Temperature of Br of Hc
Br Hcb Hcj (BH)max Tc Tw

SmCo 5
T KGs KA/m KOe KA/m KOe KJ/m 3 MGoe ° C ° C %° C %° C
(Smpr)co 5 YX- 0.81-0.85 8.1- 620-660 7.8- 1194-1830 15-23 110-127 14-16 750 250 -0.05 -0.3

16 8.5 8.3

YX- 0.85-0.9 8.5- 660-700 8.3- 1194-1830 15-23 127-143 16-18 750 250 -0.05 -0.3

18 9 8.8

YX- 0.9-0.94 9.0- 680-725 8.5-9.1 1194-1830 15-23 150-167 19-21 750 250 -0.05 -0.3

20 9.4

YX- 0.92-0.96 9.2- 710-750 8.9-9.4 1194-1830 15-23 160-175 20-22 750 250 -0.05 -0.3

22 9.6

YX- 0.96-1.0 9.6- 730-770 9.2-9.7 1194-1830 15-23 175-190 22-24 750 250 -0.05 -0.3

24 10
SmCo 5 YX- 0.9-0.94 9.0- 680-725 8.5-9.1 1433-1830 18-23 143-160 18-20 750 250 -0.05 -0.3
20s 9.4
YX- 0.92-0.96 9.2- 710-750 8.9-9.4 1433-1830 18-23 160-175 20-22 750 250 -0.05 -0.3
22s 9.6
Low LTc 0.59-0.63 5.9- 460-493 5.8-6.2 1430-1830 18-23 68-80 8.5-10 700 250 Temperature Temperature
temperature coefficient (YX- 6.3 Coefficient
SmCo5 (SmGd)Co 5 10)
of Br %° C












20-100° C -0.004












100-200° C -0.021












200-300° C -0.042
ce(coFecu) 5 YX- 0.70-0.74 7.0- 358-390 4.5-4.9 358-478 4.5-6 80-103 10.0-13 450 200

12 7.4
  Magnetic properties of Sm2Co17
Material Grade Remanence Coercive Force Intrinsic Coercive Force Max. Curie Max. Temperature Temperature
energy product Temperature Operating Coefficient Coefficient


Temperature of Br of Hc
Br Hcb Hcj (BH)max Tc Tw

Sm2Co17 YXG- 0.95-1.02 9.5- 700-750 8.7-9.4 1990 25 175-191 22-24 800 350 -0.03 -0.2
Sm 2 24H 10.2
(CoFecuzr) 17 YXG- 1.02-1.05 10.2- 750-780 9.4-9.8 1990 25 191-207 24-26 800 350 -0.03 -0.2

26H 10.5

YXG- 1.03-1.08 10.3- 756-796 9.5-10 1990 25 207-220 26-28 800 350 -0.03 -0.2

28H 10.8

YXG- 1.08-1.10 10.8- 788-835 9.9-10.5 1990 25 220-240 28-30 800 350 -0.03 -0.2

30H 11

YXG- 0.95-1.02 9.5- 700-750 8.7-9.4 1433 18 175-191 22-24 800 300 -0.03 -0.2

24 10.2

YXG- 1.02-1.05 10.2- 750-780 9.4-9.8 1433 18 191-207 24-26 800 300 -0.03 -0.2

26 10.5

YXG- 1.03-1.08 10.3- 756-796 9.5-10 1433 18 207-220 26-28 800 300 -0.03 -0.2

28 10.8

YXG- 1.08-1.10 10.8- 788-835 9.9-10.5 1433 18 220-240 28-30 800 300 -0.03 -0.2

30 11

YXG- 1.02-1.05 10.2- 750-780 9.4-9.8 955-1273 12.0-16 191-207 24-26 800 300 -0.03 -0.2

26M 10.5

YXG- 1.03-1.08 10.3- 756-796 9.5-10.0 955-1273 12.0-16 207-220 26-28 800 300 -0.03 -0.2

28M 10.8

YXG- 1.08-1.10 10.8- 788-835 9.9-10.5 955-1273 12.0-16 220-240 28-30 800 300 -0.03 -0.2

30M 11

YXG- 1.02-1.08 10.2- 398-445 5.0-5.6 400-520 5.2-6.5 207-220 26-28 800 250 -0.03 -0.2

28L 10.8

YXG- 1.08-1.15 10.8- 398-445 5.0-5.6 400-520 5.2-6.5 220-240 28-30 800 250 -0.03 -0.2

30L 11.5
Low LTC 0.94-0.98 9.4- 668-715 8.4-9.0 1194-1591 15-20 167-183 21-23 840 300 Temperature Temperature
temperature coefficient Sm2Co17 (SmEr) 2 (YXG- 9.8 Coefficient
(CoTM) 17 22)
of Br %° C












-50-25° C 0.005












20-100° C 0.012












100-200° C 0.006












200-300° C -0.025

Characteristic comparisons of permanent magnetic materials:


























Materials (BH)max Hcj Br Tc (Working temperature)max Anti-causticity







SmCo1: 5 16-25 15-25 -0.05 200-250 Good







SmCo2: 17 22-30 6.0-30 -0.03 300-350 Good







NdFeB 26-52 12.0-30 -0.11 80-200 Bad







Ferrite magnet 3-4.5 3-4.5 -0.19 200-300 Good







AINiCo 5.0-10 1-1.8 -0.03 450-500 Excellent








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