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Generals

Rare earth magnet with superior thermal stability

Applications

- Motor
- Magnetic circuit for sputtering equipment
- Sensor and others

Features

Small temperature coefficient of induction and coercive force
-Temp. coefficient of Br : -0.035 %/℃
-Temp. coefficient of iHc : -0.23%/℃

Available without surface treatment
- Better corrosion resistance compare with Nd-Fe-B magnet

Superior thermal stability
-Curie point : over 700℃

Magnetic Characteristics

  Material Code Remanence
Br		 Coercivity Max. Energy
Producy
(BH)max 		Processing
Method
HCB HCJ
T
(kG)		 kA/m
(kOe)		 kA/m
(kOe)		 kJ/㎥
(MGOe)
1~5 Series H-022A 0.85~0.95
(8.5~9.5)		 636~756
(8.0~9.5)		 ≧1193
(≧15.0)		 143~176
(18~22)		 Perpendicular
Pressing
H-18B 0.80~0.90
(8.0~9.0)		 620~717
(7.8~9.0)		 ≧1193
(≧15.0)		 127~152
(16~19)		 Parallel
Pressing
H-18C 0.80~0.90
(8.0~9.0)		 620~717
(7.8~9.0)		 ≧1591
(≧0.0)		 127~152
(16~19)
2~17 Series
 H-30SH 1.04~1.14
(10.4~11.4)		 732~852
(9.2~10.7)		 ≧1591
(≧20.0)
198~247
(25~31)		 Perpendicular
Pressing
H-30CH 1.04~1.14
(10.4~11.4)		 636~796
(8.0~10.0)		 ≧676
(≧8.5)		 198~247
(25~31)
H-26SV 1.02~1.12
(10.2~11.2)		 716~836
(9.0~10.5)		 ≧1591
(≧20.0)		 190~231
(24~29)		 Parallel
Pressing
H-23CV 0.95~1.05
(9.5~10.5)		 596~796
(7.5~10.0)		 ≧636
(≧8.0)		 159~207
(20~26)
H-20SV 0.88~0.98
(8.8~9.8)		 636~756
(8.0~9.5)		 ≧1114
(≧14.0)		 143~176
(18~22)

Physical Properties

Items Unit 1-5 Series 2-7 Series
H-22A, 18B, 18C H-23CV H-20SV
Temp.Coeff. (α) %/℃ -0.04 -0.035 -0.02
Termal Expansion
Coeff		 (C//)*1 10-6 / ℃ 7 8 10
(Cㅗ)*2 3 11 13
Specific Heat (C) J/㎏•℃ 420 380 380
Thermal
conductivity		 (C//)*1 W/m•℃ 10 10 10
(Cㅗ)*2
Flecural strength (B.S) Mpa 100 100 100
Young's Modulus (e) Gpa 150 110 110
Vickers Hardness - Hv 600 600 500
Electric resistivity (R) μΩ•m 0.5 0.8 0.8
Density (ρ) ㎏/㎥×10*3 8.3 8.5 8.5
Curie Temperature (Tc) ℃ 700~750 800~850 800~850