Sintered NdFeB permanent magnets :         

                  Sintered NdFeB permanent magnets

　     Sintered NdFeB permanent magnet is alloy magnet made from Nd,Fe,B and other trace metal element.And it is a rare earth magnet known so far for the strongest magnetism as well as high performance and good coercive force.They are mainly used in PM motor,speakers,magnetic separator and other industrial fields. First rate equipments,modern inspecting techniques and stricetd quality management system ensure us to supply high quality magnets to customers.

MAGNETIC CHARACTERISTICS　AND　PHYSICAL　PROPERTIES　OF　SINTERED　NdFeB

GRADE Br bHc iHc BH  max Tc  ºC Tw  ºC T KGs KA/m KOe KA/m KOe KJ/m3        MGOe N35 1.18-1.23 11.8-12.3 ≥868 ≥10.9 ≥955 ≥12 263-287 33-36 310 ≤80 N38 1.22-1.28 12.2-12.8 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 310 ≤80 N40 1.26-1.31 12.6-13.1 ≥923 ≥11.6 ≥955 ≥12 302-326 38-41 310 ≤80 N42 1.28-1.34 12.8-13.4 ≥923 ≥11.6 ≥955 ≥12 318-342 40-43 310 ≤80 N45 1.34-1.39 13.4-13.9 ≥876 ≥11.0 ≥955 ≥12 342-366 43-46 310 ≤80 N48 1.38-1.42 13.8-14.2 ≥836 ≥10.5 ≥876 ≥11 358-390 45-48 310 ≤80 N50 1.40-1.46 14.0-14.6 ≥836 ≥10.5 ≥876 ≥11 374-406 47-51 310 ≤80 N35M 1.18-1.23 11.8-12.3 ≥868 ≥10.9 ≥1114 ≥14 263-287 33-36 320 ≤100 N38M 1.22-1.28 12.2-12.8 ≥899 ≥11.3 ≥1114 ≥14 287-310 36-39 320 ≤100 N40M 1.26-1.31 12.6-13.1 ≥923 ≥11.6 ≥1114 ≥14 302-326 38-41 320 ≤100 N42M 1.28-1.34 12.8-13.4 ≥923 ≥11.6 ≥1114 ≥14 318-342 40-43 320 ≤100 N45M 1.34-1.39 13.4-13.9 ≥876 ≥11.0 ≥1114 ≥14 342-366 43-46 320 ≤100 N33H 1.14-1.19 11.4-11.9 ≥836 ≥10.5 ≥1353 ≥17 247-270 31-34 330 ≤120 N35H 1.18-1.23 11.8-12.3 ≥868 ≥10.9 ≥1353 ≥17 263-287 33-36 330 ≤120 N38H 1.22-1.28 12.2-12.8 ≥899 ≥11.3 ≥1353 ≥17 287-310 36-39 330 ≤120 N40H 1.26-1.31 12.6-13.1 ≥923 ≥11.6 ≥1353 ≥17 302-326 38-41 330 ≤120 N42H 1.28-1.34 12.8-13.4 ≥923 ≥11.6 ≥1353 ≥17 318-342 40-43 330 ≤120 N30SH 1.08-1.13 10.8-11.3 ≥810 ≥10.2 ≥1592 ≥20 223-247 28-31 340 ≤150 N33SH 1.14-1.19 11.4-11.9 ≥836 ≥10.5 ≥1592 ≥20 247-270 31-34 340 ≤150 N35SH 1.18-1.23 11.8-12.3 ≥868 ≥10.9 ≥1592 ≥20 263-287 33-36 340 ≤150 N38SH 1.22-1.28 12.2-12.8 ≥899 ≥11.3 ≥1592 ≥20 287-310 36-39 340 ≤150 N40SH 1.26-1.31 12.6-13.1 ≥923 ≥11.6 ≥1592 ≥20 302-326 38-41 340 ≤150 N28UH 1.03-1.09 10.3-10.9 ≥764 ≥9.60 ≥1990 ≥25 207-231 26-29 350 ≤180 N30UH 1.09-1.14 10.9-11.4 ≥812 ≥10.2 ≥1990 ≥25 223-247 28-31 350 ≤180 N33UH 1.13-1.17 11.3-11.7 ≥852 ≥10.7 ≥1990 ≥25 247-263 31-33 350 ≤180 N28EH 1.03-1.09 10.3-10.9 ≥780 ≥9.80 ≥2388 ≥30 207-231 26-29 380 ≤200 N30EH 1.08-1.13 10.8-11.3 ≥812 ≥10.2 ≥2388 ≥30 223-247 28-31 380 ≤200

Note: The above-mentioned maximum working temperature of magnet is given when the ratio of length and diameter is 0.7(i.e. D/L=0.7).