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Magnetic Properties of Neodymium Magnets

Neodymium Magnet Grade

Grade 剩余磁通密度 
(BR)
矫顽力 
(HCb)
内禀矫顽力 (Hcj) 最大磁能积
(BH)max
N35 11.7-12.1 KGs >11.0 KOe >12 KOe 33-35 MGOe
N38 12.2-12.6 KGs >11.0 KOe >12 KOe 36-38 MGOe
N40 12.6-12.9 KGs >11.0 KOe >12 KOe 38-40 MGOe
N42 13.0-13.2 KGs >11.0 KOe >12 KOe 40-42 MGOe
N45 13.3-13.7 KGs >11.0 KOe >12 KOe 43-45 MGOe
N48 13.8-14.2 KGs >11.0 KOe >12 KOe 45-48 MGOe
N50 14.1-14.5 KGs >11.0 KOe >11 KOe 48-50 MGOe
N52 14.5-14.8 KGs >11.2 KOe >11 KOe 49.5-52 MGOe
Grade 剩余磁通密度 
(BR)
矫顽力 
(HCb)
内禀矫顽力 (Hcj) 最大磁能积
(BH)max
N35M 11.7-12.1 KGs >11.4 KOe >14 KOe 33-35 MGOe
N38M 12.2-12.6 KGs >11.4 KOe >14 KOe 36-38 MGOe
N40M 12.6-12.9 KGs >11.4 KOe >14 KOe 38-40 MGOe
N42M 13.0-13.3 KGs >11.4 KOe >14 KOe 40-42 MGOe
N45M 13.3-13.7 KGs >11.4 KOe >14 KOe 42-45 MGOe
N48M 13.6-14.2 KGs >11.4 KOe >14 KOe 45-48 MGOe
N50M 14.1-14.5 KGs >11.4 KOe >14 KOe 48-50 MGOe
Grade 剩余磁通密度 
(BR)
矫顽力 
(HCb)
内禀矫顽力 (Hcj) 最大磁能积
(BH)max
N33H 11.4-11.7 KGs >10.3 KOe >17 KOe 31-33 MGOe
N35H 11.7-12.1 KGs >10.8 KOe >17 KOe 33-35 MGOe
N38H 12.2-12.6 KGs >11.4 KOe >17 KOe 36-38 MGOe
N40H 12.6-12.9 KGs >11.4 KOe >17 KOe 38-40 MGOe
N42H 13.0-13.3 KGs >11.4 KOe >17 KOe 40-42 MGOe
N45H 13.3-13.7 KGs >11.4 KOe >17 KOe 42-45 MGOe
N48H 13.6-14.2 KGs >11.4 KOe >16 KOe 45-48 MGOe
Grade 剩余磁通密度 
(BR)
矫顽力 
(HCb)
内禀矫顽力 (Hcj) 最大磁能积
(BH)max
N30SH 10.8-11.2 KGs >10.1 KOe >20 KOe 28-30 MGOe
N33SH 11.4-11.7 KGs >10.3 KOe >20 KOe 31-33 MGOe
N35SH 11.7-12.1 KGs >10.8 KOe >20 KOe 33-35 MGOe
N38SH 12.2-12.6 KGs >11.4 KOe >20 KOe 36-38 MGOe
N40SH 12.6-12.9 KGs >11.4 KOe >20 KOe 38-40 MGOe
N42SH 13.0-13.3 KGs >11.4 KOe >20 KOe 40-42 MGOe
N45SH 13.3-13.7 KGs >11.4 KOe >19 KOe 43-45 MGOe
Grade 剩余磁通密度 
(BR)
矫顽力 
(HCb)
内禀矫顽力 (Hcj) 最大磁能积
(BH)max
N28UH 10.4-10.8 KGs >9.8 KOe >25 KOe 26-28 MGOe
N30UH 10.8-11.2 KGs >10.1 KOe >25 KOe 28-30 MGOe
N33UH 11.4-11.7 KGs >10.3 KOe >25 KOe 31-33 MGOe
N35UH 11.7-12.1 KGs >10.8 KOe >25 KOe 33-35 MGOe
N38UH 12.2-12.6 KGs >11.4 KOe >25 KOe 36-38 MGOe
N40UH 12.6-12.9 KGs >11.4 KOe >25 KOe 38-40 MGOe
Grade 剩余磁通密度 
(BR)
矫顽力 
(HCb)
内禀矫顽力 (Hcj) 最大磁能积
(BH)max
N30EH 10.8-11.2 KGs >10.1 KOe >30 KOe 28-30 MGOe
N33EH 11.4-11.7 KGs >10.3 KOe >30 KOe 31-33 MGOe
N35EH 11.7-12.1 KGs >10.8 KOe >30 KOe 33-35 MGOe
N38EH 12.2-12.6 KGs >10.8 KOe >30 KOe 36-38 MGOe

Thermal characteristics

Grade
Coefficient of thermal expansion Maximum operating temperature
Curie temperature
Coefficient of thermal conductivity
%/°C °C (°F) °C (°F) kcal/m-h-°C
N -0.12 176°F (80°C) 590°F (310°C) 7.7
NM -0.12 212°F (100°C) 644°F (340°C) 7.7
NH -0.11 248°F (120°C) 644°F (340°C) 7.7
NSH -0.10 302°F (150°C) 644°F (340°C) 7.7
NUH -0.10 356°F (180°C) 662°F (350°C) 7.7
NEH -0.10 392°F (200°C) 662°F (350°C) 7.7

Physical and mechanical properties

Density7.4-7.5 g/cm3
Compressive strength110 kg/mm2
Bending strength25 kg/mm2
Vickers hardness(HV)560-600
Tensile strength7.5kg/mm2
Young modulus1.7 x 104 kg/mm2
Recoil permeability1.05 μrec
Resistance(R)160 μ-ohm-cm
Heat capacity350-500 J/(kg.°C)
Thermal expansivity(0〜100°C)
Parallel direction of magnetization
5.2 x 10-6 /°C
Thermal expansivity(0〜100°C)
Vertical direction of magnetization
-0.8 x 10-6 /°C
Neodymium Magnets Disc N35 D10x1

Neodymium Magnets Disc N35 D10x1

Neodymium Disc Magnets,D10x1, Ni-Cu-Ni, Grade_N35

Bar Magnets Neodymium N35 10X10X2

Bar Magnets Neodymium N35 10X10X2

Neodymium Block Magnets,10X10X2, Ni-Cu-Ni, Grade_N35

Super Strong Neodymium Magnet Block N35 30X20X10

Super Strong Neodymium Magnet Block N35 30X20X10

Neodymium Block Magnets,30X20X10, Ni-Cu-Ni, Grade_N35