Material property of Radially oriented, anisotropic Nd-Fe-B ring magnets (NEOQUENCH-DR)
Magnetic property
| ND-31HR | ND-31SHR | ND-35HR | ||
|---|---|---|---|---|
| Remanence,Br | (T) | 1.14～1.22 |
1.08～1.18 |
1.22～1.28 |
| (kG) | (11.4～12.2) | (10.8～11.8) | (12.2～12.8) | |
| Coercivity,HCB | (kA/m) | 830～890 |
810～880 |
870～940 |
| (kOe) | (10.4～11.2) | (10.2～11.1) | (10.9～11.8) | |
| Coercivity,HCJ | (kA/m) | 1110～1430 |
1590～1990 |
1110～1430 |
| (kOe) | (14.0～18.0) | (20.0～25.0) | (14.0～18.0) | |
| Maximum Energy product | (kJ/m3) | 240～270 |
230～260 |
270～300 |
| (MGOe) | (30.0～34.0) | (29.0～33.0) | (34.0～38.0) | |
| Recoil permeability | 1.05 | 1.05 | 1.05 | |
| Required magnetizing magnetic field | (kA/m) | ≧1990 |
≧2390 |
≧1990 |
| (kOe) | (≧25) | (≧30) | (≧25) | |
| density | (Mg/m3) | 7.6 | 7.7 | 7.6 |
| (g/cm3) | ||||
| ND-35SHR | ND-39R | ND-43R | ||
|---|---|---|---|---|
| Remanence,Br | (T) | 1.22～1.28 |
1.28～1.32 |
1.30～1.36 |
| (kG) | (12.2～12.8) | (12.8～13.2) | (13.0～13.6) | |
| Coercivity,HCB | (kA/m) | 880～950 |
880～960 |
840～960 |
| (kOe) | (11.1～11.9) | (11.1～12.1) | (10.5～12.1) | |
| Coercivity,HCJ | (kA/m) | 1430～1800 |
1040～1280 |
900～1160 |
| (kOe) | (18.0～22.6) | (13.0～16.0) | (11.3～14.6) | |
| Maximum Energy product | (kJ/m3) | 270～300 |
300～330 |
320～360 |
| (MGOe) | (34.0～38.0) | (38.0～42.0) | (40.0～45.0) | |
| Recoil permeability | 1.05 | 1.05 | 1.05 | |
| Required magnetizing magnetic field | (kA/m) | ≧2390 |
≧1990 |
≧1990 |
| (kOe) | (≧30) | (≧25) | (≧25) | |
| density | (Mg/m3) | 7.7 | 7.6 | 7.6 |
| (g/cm3) | ||||
The above properties are not guaranteed for magnets with thick walls. Please consult us for details.
Other properties
| Temperature Coefficient of Br : Alfer | %/℃ | -0.10 |
|---|---|---|
| Temperature Coefficient of HCJ : Beta | %/℃ | -0.50 |
| Curie temperature | ℃ | 360 |
| Specific heat | J/kg℃ | 550 |
| Thermal conductivity | W/m℃ | 4.80 |
| Thermal expansion coefficient (20%～200 degree Celsius) | ×10-6/℃ | 1～2(Radial direction) |
| -1～0(Axial direction) | ||
| Electric resistance | ×10-8Ωm | 135 |
| Ring crushing strength | MPa | 150 |
| Young's Modulus | MPa | 152000 |
| Bending Strength | MPa | 200 |
| Vickers Hardness | Hv | 750 |
Product dimemsions
