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Performance parameters of sintered NdFeB magnets
Grade Remanence(Br) Coercivity(Hcb) Intrinsic Coercivity Force(Hcj) Max.Energy Product(BH)m Working Temp
kGs T KOe KA/m KOe KA/m MGOe KJ/m3 ℃
Nom. Min. Nom. Min. Nom. Min. Nom. Min. Nom. Min. Nom. Min.
N35 12.1 11.7 1.21 1.17 11.5 10.8 915 860 ≥12 ≥955 35 33 279 263 ≤80
N38 12.6 12.2 1.26 1.22 11.5 10.8 915 860 ≥12 ≥955 38 36 303 287 ≤80
N40 12.9 12.6 1.29 1.26 11 10.5 876 836 ≥12 ≥955 40 38 318 303 ≤80
N42 13.2 12.6 1.32 1.26 11 10.5 876 836 ≥12 ≥955 42 40 334 318 ≤80
N45 13.7 13.3 1.37 1.33 11 10.5 876 836 ≥12 ≥955 45 43 358 342 ≤80
N48 14.1 13.7 1.41 1.37 10.8 10.2 860 812 ≥12 ≥955 48 46 383 367 ≤80
N50 14.5 14.1 1.45 1.41 10.8 10.2 860 812 ≥12 ≥955 50 48 398 383 ≤80
N52 14.8 14.3 1.48 1.43 ≥11.0 ≥876 ≥12.0 ≥960 53 49 422 390 ≤80
N54 15 14.7 1.5 1.47 ≥10.5 ≥836 ≥11.0 ≥875 55 51 438 406 ≤80
N35M 12.1 11.7 1.21 1.17 11.6 11 924 876 ≥14 ≥1114 35 33 279 263 ≤100
N38M 12.6 12.2 1.26 1.22 11.8 11.4 939 907 ≥14 ≥1114 38 36 303 287 ≤100
N40M 12.9 12.6 1.29 1.26 12.2 11.8 971 939 ≥14 ≥1114 40 38 318 303 ≤100
N42M 13.2 12.9 1.32 1.29 12.6 12.2 1003 971 ≥14 ≥1114 42 40 334 318 ≤100
N45M 13.7 13.3 1.37 1.33 12.8 12.4 1019 987 ≥14 ≥1114 45 43 358 342 ≤100
N48M 14.1 13.7 1.41 1.37 12.8 12.4 1019 987 ≥14 ≥1114 48 46 383 367 ≤100
N50M 14.4 14 1.44 1.4 ≥13.0 ≥1035 ≥14 ≥1114 51 47 406 374 ≤100
N52M 14.8 14.3 1.48 1.43 ≥12.8 ≥1019 ≥14 ≥1114 53 49 422 390 ≤100
N33H 11.7 11.4 1.17 1.14 11 10.3 876 820 ≥17 ≥1353 33 31 263 247 ≤120
N35H 12.1 11.7 1.21 1.17 11.5 10.8 915 860 ≥17 ≥1353 35 33 279 263 ≤120
N38H 12.6 12.2 1.26 1.22 12 11.5 955 915 ≥17 ≥1353 38 36 303 287 ≤120
N40H 12.9 12.6 1.29 1.26 12 11.5 955 915 ≥17 ≥1353 40 38 318 303 ≤120
N42H 13.2 12.9 1.32 1.29 12.6 12.2 1003 971 ≥17 ≥1353 42 40 334 318 ≤120
N45H 13.6 13.2 1.36 1.32 12.8 12.4 1019 987 ≥17 ≥1353 45 43 358 342 ≤120
N48H 13.8 13.6 1.38 1.36 12.8 12.4 1019 987 ≥17 ≥1353 47 45 375 358 ≤120
N50H 14.4 14 1.44 1.4 ≥13.0 ≥1035 ≥16 ≥1273 51 47 406 374 ≤120
SmCo magnet performance parameters
Grade Residual magnetism Br ( 20°C) Coercivity(Hcb) Intrinsic Coercivity(Hcj) Maximum magnetic energy product Density Operating temperature
(BH)max
T KGs KA/m KOe KA/m KOe KJ/m3 MGOe g/cm3 °C
SmCo5 XG18 0.84-0.89 8.4-8.9 ≥661 ≥8.3 ≥1751 ≥22.0 135-151 17-19 8.1-8.3 250
XG20 0.89-0.93 8.9-9.3 ≥685 ≥8.6 ≥1751 ≥22.0 151-167 19-21 8.1-8.3 250
XG22 0.92-0.96 9.2-9.6 ≥708 ≥8.9 ≥1751 ≥22.0 167-183 21-23 8.1-8.3 250
XG24 0.96-1.00 9.6-10.0 ≥740 ≥9.3 ≥1751 ≥22.0 183-199 23-25 8.1-8.3 250
Sm2Co17 XGS26 1.02-1.05 10.2-10.5 ≥748 ≥9.4 ≥1433 ≥18.0 191-207 24-26 8.2-8.4 300
XGS28 1.03-1.08 10.3-10.8 ≥756 ≥9.5 ≥1433 ≥18.0 207-223 26-28 8.2-8.4 300
XGS30 1.08-1.10 10.8-11.0 ≥788 ≥9.9 ≥1433 ≥18.0 223-239 28-320 8.2-8.4 300
XGS32 1.10-1.13 11.0-11.3 ≥812 ≥10.2 ≥1433 ≥18.0 231-255 29-32 8.2-8.4 300
XGS33 1.12-1.16 11.2-11.6 ≥845 ≥10.6 ≥1433 ≥18.0 239-263 30-33 8.2-8.4 300
XGS26H 1.02-1.05 10.2-10.5 ≥748 ≥9.4 ≥1990 ≥25.0 191-207 24-26 8.3-8.5 350
XGS28H 1.03-1.08 10.3-10.8 ≥756 ≥9.5 ≥1990 ≥25.0 207-223 26-28 8.3-8.5 350
XGS30H 1.08-1.10 10.8-11.0 ≥788 ≥9.9 ≥1990 ≥25.0 223-239 28-30 8.3-8.5 350
XGS32H 1.10-1.13 11.0-11.3 ≥812 ≥10.2 ≥1990 ≥25.0 231-255 29-32 8.3-8.5 350
XGS-33H 1.12-1.16 11.2-11.6 ≥845 ≥10.6 ≥1990 ≥25.0 239-263 30-33 8.3-8.5 350

Magnet Coating

Coating Type

Thickness

SST

Temp&Humi

PCT/HAST

Use Temp

Zn

5-15

≥48

/

/

≤160℃

NiCuNi

10-30

≥96

≥500

96

≤200℃

Ni+Sn

10-30

≥96

500

96

≤200℃

Ni +Au

10-30

≥96

500

96

≤200℃

Ni+Ag

10-30

≥96

72

48

≤160℃

Epoxy

10-30

≥72

72

48

≤160℃

NiCu+EpoXy

20-40

≥500

500

200

≤160℃

Ni+EpoXy

20-40

≥500

500

200

≤160℃

Vaccum-plating Al

5-30

≥100

500

200

≤400℃

AI+Epoxy

15-30

≥200

500

200

≤160℃

Notes:Corrosion resistance varies with the shape of the product.

Magnetization Direction

Products

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