Supply Neodymium Disc Magnets size D4X4mm Rare Earth Grade N35

Xionghai magnets preparesits anisotropic powders by either casting an alloy melt into a mold, or strip casing. Strip Casting offers the advantage of better chemical stability. Subsequently, the ingot from the mold or the flakes from Strip Casting are pulverized to a uniform grain/particle size. The best method for obtaining the desired grain size is by HDDR. The HDDR [hydrogenation-decomposition-desorption-recombination] process yields a more homogenous particle size with a minimum of α-Fe, and Nd-rich phases. Anisotropic Nd-Fe-B, HDDR powders prepared from strip cast alloys are used for the HAST [Highly Accelerated Stress Test] grades of NdFeB Magnets, including N, H, SH, UH, EH, and AH grades.

The Magnetic Properties of Neodymium Permanent Magnete Super Strong Magneti Neodimio Rare Earth Aimant Neodyme:

Magnetic Properties of Sintered NdFeBMagnets

Grade Remanence Coercivity Force Intrinsic Coercive Force Max. Energy Product maximum Operating Temp. Br Hcb Hcj ( BH ) max mT kGs kA/m kOe kA/m kOe kJ/m3 MGOe N35 1170-1220 11.7-12.2 ≥868 ≥10.9 ≥955 ≥12 263-287 33-36 80 ℃ N38 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 80 ℃ N40 1250-1280 12.5-12.8 ≥907 ≥11.4 ≥955 ≥12 302-326 38-41 80 ℃ N42 1280-1320 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 80 ℃ N45 1320-1380 13.2-13.8 ≥923 ≥11.6 ≥955 ≥12 342-366 43-46 80 ℃ N48 1380-1420 13.8-14.2 ≥923 ≥11.6 ≥876 ≥12 366-390 46-49 80 ℃ N50 1400-1450 14.0-14.5 ≥796 ≥10.0 ≥876 ≥11 382-406 48-51 60 ℃ N52 1430-1480 14.3-14.8 ≥796 ≥10.0 ≥876 ≥11 398-422 50-53 60 ℃ 33M 1130-1170 11.3-11.7 ≥836 ≥10.5 ≥1114 ≥14 247-263 31-33 100 ℃ 35M 1170-1220 11.7-12.2 ≥868 ≥10.9 ≥1114 ≥14 263-287 33-36 100 ℃ 38M 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥1114 ≥14 287-310 36-39 100 ℃ 40M 1250-1280 12.5-12.8 ≥923 ≥11.6 ≥1114 ≥14 302-326 38-41 100 ℃ 42M 1280-1320 12.8-13.2 ≥955 ≥12.0 ≥1114 ≥14 318-342 40-43 100 ℃ 45M 1320-1380 13.2-13.8 ≥995 ≥12.5 ≥1114 ≥14 342-366 43-46 100 ℃ 48M 1360-1430 13.6-14.3 ≥1027 ≥12.9 ≥1114 ≥14 366-390 46-49 100 ℃ 50M 1400-1450 14.0-14.5 ≥1033 ≥13.0 ≥1114 ≥14 382-406 48-51 100 ℃ 33H 1130-1170 11.3-11.7 ≥836 ≥10.5 ≥1353 ≥17 247-271 31-34 120 ℃ 35H 1170-1220 11.7-12.2 ≥868 ≥10.9 ≥1353 ≥17 263-287 33-36 120 ℃ 38H 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥1353 ≥17 287-310 36-39 120 ℃ 40H 1250-1280 12.5-12.8 ≥923 ≥11.6 ≥1353 ≥17 302-326 38-41 120 ℃ 42H 1280-1320 12.8-13.2 ≥955 ≥12.0 ≥1353 ≥17 318-342 40-43 120 ℃ 45H 1300-1360 13-13.6 ≥963 ≥12.1 ≥1353 ≥17 326-358 43-46 120 ℃ 48H 1370-1430 13.7-14.3 ≥995 ≥12.5 ≥1353 ≥17 366-390 46-49 120 ℃ 33SH 1130-1170 11.3-11.7 ≥844 ≥10.6 ≥1592 ≥20 247-271 31-34 150 ℃ 35SH 1170-1220 11.7-12.2 ≥876 ≥11.0 ≥1592 ≥20 263-287 33-36 150 ℃ 38SH 1220-1250 12.2-12.5 ≥907 ≥11.4 ≥1592 ≥20 287-310 36-39 150 ℃ 40SH 1240-1280 12.5-12.8 ≥939 ≥11.8 ≥1592 ≥20 302-326 38-41 150 ℃ 42SH 1280-1320 12.8-13.2 ≥987 ≥12.4 ≥1592 ≥20 318-342 40-43 150 ℃ 45SH 1320-1380 13.2-13.8 ≥1003 ≥12.6 ≥1592 ≥20 342-366 43-46 150 ℃ 28UH 1020-1080 10.2-10.8 ≥764 ≥9.6 ≥1990 ≥25 207-231 26-29 180 ℃ 30UH 1080-1130 10.8-11.3 ≥812 ≥10.2 ≥1990 ≥25 223-247 28-31 180 ℃ 33UH 1130-1170 11.3-11.7 ≥852 ≥10.7 ≥1990 ≥25 247-271 31-34 180 ℃ 35UH 1180-1220 11.8-12.2 ≥860 ≥10.8 ≥1990 ≥25 263-287 33-36 180 ℃ 38UH 1220-1250 12.2-12.5 ≥876 ≥11.0 ≥1990 ≥25 287-310 36-39 180 ℃ 40UH 1240-1280 12.5-12.8 ≥899 ≥11.3 ≥1990 ≥25 302-326 38-41 180 ℃ 42UH 1280-1320 12.8-13.2 ≥899 ≥11.3 ≥1990 ≥25 318-342 40-43 180 ℃ 28EH 1040-1090 10.4-10.9 ≥780 ≥9.8 ≥2388 ≥30 207-231 26-29 200 ℃ 30EH 1080-1130 10.8-11.3 ≥812 ≥10.2 ≥2388 ≥30 223-247 28-31 200 ℃ 33EH 1130-1170 11.3-11.7 ≥836 ≥10.5 ≥2388 ≥30 247-271 31-34 200 ℃ 35EH 1170-1220 11.7-12.2 ≥876 ≥11.0 ≥2388 ≥30 263-287 33-36 200 ℃ 38EH 1220-1250 12.2-12.5 ≥899 ≥11.3 ≥2388 ≥30 287-310 36-39 200 ℃ 40EH 1250-1280 12.5-12.8 ≥899 ≥11.3 ≥2388 ≥30 287-310 38-41 200 ℃ 28AH 1040-1080 10.4-10.8 ≥787 ≥9.9 ≥2624 ≥33 207-231 26-29 230 ℃ 30AH 1080-1130 10.8-11.3 ≥819 ≥10.3 ≥2624 ≥33 223-247 28-31 230 ℃ 33AH 1130-1170 11.3-11.7 ≥843 ≥10.6 ≥2624 ≥33 247-271 31-34 230 ℃ 35AH 1170-1220 11.7-12.2 ≥876 ≥11.0 ≥2624 ≥33 263-287 33-36 230 ℃

The Surface Coatings of Neodymium Permanent Magnete Super Strong Magneti Neodimio Rare Earth Aimant Neodyme:

Surface	Coating	thickness(um)	Coating Color	SST (hours)	PCT (hours)
Nickel	Ni+Ni Ni+Cu+Ni	10~20	Bright Silvery	24~72	24~72
Black Nickel	Ni+Cu+Ni	10~20	Bright Black	48~96	48
Cr3+Zinc	Zn Cr-Zn	5~8	Bright Blue Shining Color	16~48 36~72	\
Sn	Ni+Cu+Ni+Sn	10~25	Silver	36~72	48
Au	Ni+Cu+Ni+Au	10~25	Gold	12	48
Ag	Ni+Cu+Ni+Ag	10~25	Silver	12	48
Epoxy	Epoxy Ni+Cu+Epoxy Zn+Epoxy	10-20 15-30 15-25	Black / Grey	48 72~108 72~108
Passivation	\	1-3	Dark Grey	Temporary Protection	\
Phosphated	\	1-3	Dark Grey	Temporary Protection

Product Name: sintered NdFeB Magents
Product Specifications: D4X4 mm

Magnetization direction: Axis

Grade:N35
Rough specifications: D4.1X35mm

Pictures of The test reports:



Pictures of The SST Report:
Pictures of Neodymium Disc Magnets size D4X4mm Rare Earth Grade N35 Magnete: