Magnetic Products Online Brochure
December 20, 2013

Sagami Chemical Metal Co., Ltd.
TEL.042-773-2626 &k_gljglc'ýD?V,.20+550+..77Ħ0-/2ħ

Neodymium magnets

SAGAMI	
  MAGNET	
  Product guide
These magnets offer magnetic characteristics that are overwhelmingly superior to those of existing magnets. These
products are incredibly powerful.

Our NEOFLUX seriesThis type of magnet achieves the highest magnetic energy of all permanent magnets now in practical use. The main
phase of the magnetism of rare-earth magnets developed conventionally was a two-component alloy. However,neodymium magnets combine neodymium with iron and boron to constitute a three-component, anisotropic-sintered
rare-earth magnet with an atomic ratio of Nd 2 Fe 14 B 1.
The neodymium magnet exhibits excellent performance in terms of size reduction, thinning, weight reduction andenhancing the efficiency of applied equipment. However, its magnetic characteristics and corrosion-resistance
performance require caution in use of the product at high temperature. For the dynamic characteristics of the productat high temperature, the Br temperature characteristics of the magnet must be sufficiently considered.

■The main characteristics of neodymium magnets are as follows:_'Grqk_vgkskclcpewnpmbsar&@Fk_v'd_pcvaccbqrf_rmddcppgrc&2,3KEMc'_lbq_k_pgsk+am`_jrk_elcrq&1.
MGOe). Some models even exceed 48 MGOe.
b) Since it consists mainly of relatively inexpensive neodymium and iron, it offers better cost performance thansamarium-cobalt magnets that contain much cobalt, and poses no concern over availability.
a'?jrfmsefrfcqck_elcrqf_tcrckncp_rspcaf_p_arcpgqrgaqgldcpgmprmrfmqcmdq_k_pgsk+am`_jrk_elcrq*
heat-resistant materials have been developed with higher magnetic coercive force for the following: NF-H series, NF-SH
series and NF-UH series.
b'Mdrfck_glamknmlclrq*gpml_aamslrqdmplc_pjw5.#,Rmclqspcpsqrnpmmdgle*rfcqck_elcrq_pccosgnncbugrfLg
electrolytic plating as standard.
■Caution that you should exercise
For high-temperature demagnetization, refer to the Hcj temperature characteristics of the magnets. For the NF series,
we therefore provide different materials with various Hcj levels. Even with the same material, these magnets vary indemagnetization characteristics according to shape. These materials also make the magnets prone to rusting.
Therefore, the products should undergo surface treatment.
■ Magnetic characteristics
Material nameNF-H NF-SH NF-UH series

Residual flux densityĦ@pħ Residual flux densityĦFCBħ Residual flux densityĦFCJ ħ
iE ě R
iMc ě i?-k
iMc ě i?-k

Ħ@Fħ
max
KEMc ě iH-k3

NF35H//,6ĝ/0,3
/,/6ĝ/,03

ł//,.
ł653

ł/5,.
ł/131

11ĝ15
041ĝ072

NF38H/0,0ĝ/1,.
/,00ĝ/,1.

ł//,3
ł7/3

ł/5,.
ł/131

14ĝ2.
064ĝ1/6

NF41H/0,4ĝ/1,0/,04ĝ/,10

ł//,6
ł717

ł/5,.
ł/131

16ĝ20
1.0ĝ112

NF44H/1,.ĝ/1,5
/,1.ĝ/,15

ł/0,/
ł741

ł/4,.
ł/052

2/ĝ23
104ĝ136

NF48H/1,5ĝ/2,1
/,15ĝ/,21

ł/0,7
ł/.04

ł/4,.
ł/052

23ĝ27
136ĝ17.

NF35SH//,6ĝ/0,3
/,/6ĝ/,03

ł//,.
ł653

ł0.,.
ł/370

11ĝ15
041ĝ072

LD17QF/0,1ĝ/1,.
/,01ĝ/,1.

ł//,4
ł701

ł0.,.
ł/370

14ĝ2.
065ĝ1/6

NF42SH/0,6ĝ/1,1
/,06ĝ/,11

ł/0,.
ł733

ł0.,.
ł/370

17ĝ21
1/.ĝ120

LD1.SF/.,6ĝ//,4/,.6ĝ/,/4

ł/.,0
ł6/0

ł03,.
ł/767

06ĝ10001ĝ033

B Other/ŏ 3ŏ

Nd
06ŏ

Fe
44ŏ

To use our products more correctly and safely, please order delivery specifications in which you can examine the characteristics and specifications ineven more detail. Please understand that specifications are subject to change without prior notice for improvement and other reasons.

Ħ1-/2ħ

Neodymium magnets

SAGAMI	
  MAGNET	
  ■Characteristic distribution diagram for the NEOFLUX seriesĮRįĮiEįᯩ

Residual flux density Br

1.5

15.0

1.4

14.0

LD26F

LD26
LD23

LD22F

ᯨ

1.3

1.2

LD2.

LD2/F
LD16F

LD13

LD13F

13.0

12.0

LD20QF
LD17QF

LD13QF
LD1.SF

1.1

11.0

1.0

1.0

10

15

20

25

800

1200

1600

2000

K_elcrgaamcpagtcdmpacĦFahħ■Force of magnets
Magnets support various technologies, including electric vehicles, linear motor cars, mobile phones, and even therapy for
qrgddqfmsjbcpq,RfcQ_e_kgAfckga_jKcr_jEpmsn*_q_lglbsqrpg_jk_elcrk_lsd_arspcp*nspqscqrfcnmqqg`gjgrgcqmd
k_elcrq_lbmnclqsn_lcudsrspcugrfk_elcrq,Grkccrq_jjiglbqmdlccbq,Dmp_lwrfgle_`msrk_elcrq*njc_qcbm
not hesitate to consult us.

■Demagnetization curve
Permeance coefficientă
ĦQG8@-ʚF*AEQ8@-Fħ

O
1.0

1.2

1.4 1.6 1.8 2.0 2.5 3.0 4.0 5.0 10.0
3

Clcpewă@bĂFb

ĦIH-kħ
QI


ĮRį
ĮiEį



400 320 240160 80

1.5

0.Ŋ

0.6

3.Ŋ

15

2ʞG*@

0.8

6.Ŋ
/0.Ŋ
/3.Ŋ

1.0

10

0.5

5

0

0

0.2

ĦKEMcħAEQ

0.4

50
40
30
20
10

Įi?-kįĮiMcį 20

1500

1000
15

500
10

5

0

Rmsqcmspnpmbsarqkmpcamppcarjw_lbq_dcjw*njc_qcmpbcpbcjgtcpwqncagdga_rgmlqglufgafwmsa_lcv_kglcrfcaf_p_arcpgqrgaq_lbqncagdga_rgmlqgl
ctclkmpcbcr_gj,Njc_qcslbcpqr_lbrf_rqncagdga_rgmlq_pcqs`hcarrmaf_lecugrfmsrnpgmplmrgacdmpgknpmtckclr_lbmrfcppc_qmlq,（4/14）

Neodymium magnets:(.(404(.5,;■Physical characteristics

Temperature coefficient（20℃~Tw） Density（D）
g ／ m3−％／℃

Series name

Curie temperature（Tc）℃

Vickers hardness（HV）＊Operating temperature（℃）
Tw

αBr

αH

NF-H series

0.11

0.6

7.3~7.5

320~340500~600＜

120

NF-SH series

0.1

0.6

7.3~7.5

340~400

500~600＜

150

NF-UH series

0.09

0.6

7.3~7.5

350~400

500~600＜

180＊This is when cylinder L/D = 0.7 (Pc≒2). If the L/D level is low (small thickness), other considerations are necessary.

D

L■Manufacturing process for magnets (outline)

Mixing1.Mix the ingredients.

Melting

2.Dissolve the mixture at high temperature and prepare an alloy.

Fine pulverization
Molding in a magnetic field
Sintering and heat treatment

3.Turn the alloy into fine powder.
4.When pressing the fine powder, apply a magnetic field to it and prepare a molded product of
powder with aligned directions of magnetization.
5.Sinter the product at about 1,100℃, and then subject it to heat treatment at about 600℃ toincrease its magnetic characteristics.

Processing
6.Process the manufactured magnet base material and finish it into the product shape.
Surface treatment（plating）
Magnetization

7.Subject the product to surface treatment in order to make it rustproof.
8.Apply a magnetic field to give the magnet magnetism.

To use our products more correctly and safely, please order delivery specifications in which you can examine the characteristics and specifications ineven more detail. Please understand that specifications are subject to change without prior notice for improvement and other reasons.

Ħ3-/2ħSamarium-cobalt magnets

SAGAMI	
  MAGNET	
  Product guide
These magnets are characterized by high magnetism, and are also resistant to both rust and high temperature.
These magnets represent the highest magnetic energy product after neodymium magnets. They are also highly
corrosion-resistant without being rustproofed and offer excellent temperature characteristics as well. These are
rare-earth magnets resistant to high temperature.
These sintered products consist mainly of samarium (Sm) and cobalt (Co), and are available with two kinds of material:
1-5 series and 2-17 series. The 1-5 series has high magnetic coercive force (Hcj), but is easy to magnetize and adjust
magnetism. Magnets of this series also exhibit relatively stable performance under changing temperature. The 2-17
series has high magnetism and offers excellent temperature stability in magnetic characteristics as well.
Samarium-cobalt magnets are relatively low in mechanical strength. Caution should therefore be exercised in handlingthese magnets to prevent chipping and cracking.

■Magnetic characteristics
Material nameSF20
1-5series

QD02
2-17series

QD04
2-17series

QD06
2-17series

SF30
2-17series

Residual flux densityĦ@pħ Magnetic coercive forceĦFA@ħ Magnetic coercive forceĦFCJ ħ
iE ě R
iMc ě i?-k
iMc ě i?-kMaximum energy productĦ@Fħmax
KEMc ě iH-k3

ł7,.
ł.,7.

ł6,3
ł454

ł/3
ł//72

/7ĝ0/
/3.ĝ/45

ł7,3
ł.,73

ł6,5
ł470

ł/6
ł/211

00ĝ02
/53ĝ/7/

ł/.,0
ł/,.0

ł7,2
ł526

ł/6
ł/211

02ĝ04
/7/ĝ0/3

ł/.,1
ł/,.1

ł7,3
ł534

ł/6
ł/211

04ĝ06
0.3ĝ00.

ł/.,6
ł/,.6

ł7,7
ł566

ł/6
ł/211

06ĝ1.
00.ĝ02.

ĮAmknmqgrgmlmdQkAoĦ/+3qcpgcqħį
Fe
Sn
Pr.,12ŏ.,/4ŏ
/2ŏ

Co40,3ŏ

Sm01ŏĮAmknmqgrgmlmdQkAoĦ0+/5qcpgcqħį
Fe
/3ŏ

Sm
03ŏ

Cu
4ŏ

Other
1ŏ

Co
3/ŏ

To use our products more correctly and safely, please order delivery specifications in which you can examine the characteristics and specifications ineven more detail. Please understand that specifications are subject to change without prior notice for improvement and other reasons.

Ħ4-/2ħSamarium-cobalt magnets

SAGAMI	
  MAGNET	
  ■Characteristic distribution chart for the SmCoFLUX series

Pcqgbs_jdjsvbclqgrwĦ@pħĮRįĮiEį
1.3

13.0

1.2

12.0

1.1

11.0

SF30
SF28

1.0

10.0

SF24

0.9

9.0

0.8

8.0

SF26

SF20

10

15

20

25

800

1200

1600

2000

K_elcrgaamcpagtcdmpacĦFahħ■Demagnetization curveĮRį1.2

1990

1790

1591

1392

1194

995

796

597

398

199

0

12ĮIEqį

1.1

11

1.0

10

0.9

9
8

0.8
0.Ŋ

0.7

/..Ŋ

/3.Ŋ

0..Ŋ

03.Ŋ

1..Ŋ

13.Ŋ

7

0.6

6

0.5

5

0.4

4

0.3

3

0.2

2

0.1

1

HĮiMcį

25.0

22.5

20.0

17.5

15.0

12.5

10.0

7.5

5.0

2.5

0

0

Rmsqcmspnpmbsarqkmpcamppcarjw_lbq_dcjw*njc_qcmpbcpbcjgtcpwqncagdga_rgmlqglufgafwmsa_lcv_kglcrfcaf_p_arcpgqrgaq_lbqncagdga_rgmlqgl
ctclkmpcbcr_gj,Njc_qcslbcpqr_lbrf_rqncagdga_rgmlq_pcqs`hcarrmaf_lecugrfmsrnpgmplmrgacdmpgknpmtckclr_lbmrfcppc_qmlq,Ħ5-/2ħSamarium-cobalt magnets

SAGAMI	
  MAGNET	  ■Physical characteristics

Npmbsarl_kc Rckncp_rspcamcddgagclrĦ0.ŊĝRuħ BclqgryĦBħe ě k1ĹŏěŊQcpgcql_kc

ʏ@p

ʏF

Aspgcrckncp_rspeĦRaħŊ

Tgaicpqf_pblcqsĦFTħŒMncp_rglerckncp_rspeĦŊħRu

Qk/Am3qcpgcq

QD0.

.,.3

.,1

6,1

53.

23.ĝ3..

03.

Qk0Am/5qcpgcq

QD02

.,.03

.,0

6,2

6..

33.ĝ4..

1..

QD04

.,.1

.,0

6,2

6..

33.ĝ4..

1..

QD06

.,.13

.,0

6,2

6..

33.ĝ4..

1..

QD1.

.,.13

.,0

6,2

6..

33.ĝ4..

1..

■Manufacturing process for magnets (outline)

Kgvgle/,Kgvrfcglepcbgclrq,KcjrgleDglcnsjtcpgx_rgml
Kmjbglegl_k_elcrgadgcjb

0,Bgqqmjtcrfckgvrspc_rfgefrckncp_rspc_lbnpcn_pc_l_jjmw,
1,Rsplrfc_jjmwglrmdglcnmubcp,
2,Ufclnpcqqglerfcdglcnmubcp*_nnjw_k_elcrgadgcjbrmgr_lbnpcn_pc_kmjbcbnpmbsarmd
nmubcpugrf_jgelcbbgpcargmlqmdk_elcrgx_rgml,Qglrcpgle_lbfc_rrpc_rkclr

3,Qglrcprfcnpmbsar_r_`msr/*0..Ŋ*_lbrfclqs`hcargrrmfc_rrpc_rkclr_r_`msr/*...Ŋgl
mpbcprmglapc_qcgrqk_elcrgaaf_p_arcpgqrgaq,

Npmacqqgle


4,Npmacqqrfck_lsd_arspcbk_elcr`_qck_rcpg_j_lbdglgqfgrglrmrfcnpmbsarqf_nc,

K_elcrgx_rgml


5,Qspd_ac+rpc_rgrdmppsqrnpmmdgle,Rmsqcmspnpmbsarqkmpcamppcarjw_lbq_dcjw*njc_qcmpbcpbcjgtcpwqncagdga_rgmlqglufgafwmsa_lcv_kglcrfcaf_p_arcpgqrgaq_lbqncagdga_rgmlqgl
ctclkmpcbcr_gj,Njc_qcslbcpqr_lbrf_rqncagdga_rgmlq_pcqs`hcarrmaf_lecugrfmsrnpgmplmrgacdmpgknpmtckclr_lbmrfcppc_qmlq,

Ħ6-/2ħFerrite magnets

SAGAMI	
  MAGNET	
  Product guide
These magnets offer stable performance and excellent cost performance.
Iron oxide is used as the main material of these ceramic magnets, with strontium carbonate or barium carbonate used as
an auxiliary material. These magnets are also manufactured by powder metallurgy.
Ferrite magnets offer the most excellent cost performance of all magnets. Made of ceramics, these magnets areadvantageous in terms of chemical stability and not being subject to rust. Since the temperature changes of Br are
relatively large, these magnets require a design that allows for the temperature environment. The temperature changesof Hcj are opposite those of rare-earth magnets and other metal magnets, thereby requiring sufficient caution regarding
demagnetization at low temperature.
We can supply molds for ring-type, segment-type or other types of products needed by our clients by taking fulladvantage of our domestic and international network. Molds can be manufactured at surprisingly low cost.

■Magnetic characteristics
Material nameResidual flux densityĦ@pħiE ě R

Magnetic coercive forceĦFCBħ Magnetic coercive forceĦFAH ħ
iMc ě i?-k
iMc ě i?-k

Ħ@Fħ
max
KEMc ě iH-k3

Isotropic

22
0.22

1.8
143

1.0
8.0

Dry and anisotropic

37
0.37

2.8
224

3.0
240

3.2
25.6

Wet and anisotropic

4.05
0.405

3.62
288

4.06
323

3.7
29.5

4.0
0.4

3.1
24.7

3.15
251

3.75
29.8

4.05
0.405

3.75
298

4.05
322

3.9
31.0

4.0
0.4

2.8
224

2.85
224

4.0
31.8

42
0.42

2.96
235

3.02
240

4.2
33.4

42
0.42

3.8
303

4.0
319

4.2
33.4

The material values indicated above are representative ones. We can also provide other materials.

ĮUcr_lb_lgqmrpmngadcppgrcamknmlclrį
SrCO 3Other

Fe2O 3To use our products more correctly and safely, please order delivery specifications in which you can examine the characteristics and specifications ineven more detail. Please understand that specifications are subject to change without prior notice for improvement and other reasons.

（9/14）Ferrite magnets:(.(404(.5,;■Demagnetization curve
5

4

3.0

7

10

〈MGOe〉

6

5

4

3

2

1

2.0

-60℃

1.0

〈G〉〈mT〉
5000 500
4500

450

4000

400

3500

350

3000

300

2500

250

2000

200

1500

150

1000

100

500

50

0

0

-20℃

0.8

20℃
60℃

0.6
0.4

2

〈Oe〉5000 4500 4000 3500 3000 2500 2000 1500 1000
〈KA/m〉400

300

200

100

500

0

■Manufacturing process for magnets (outline)

Mixing
Temporary baking
Fine pulverization
Molding in a magnetic field
Sintering
Processing
Magnetization

To use our products more correctly and safely, please order delivery specifications in which you can examine the characteristics and specifications ineven more detail. Please understand that specifications are subject to change without prior notice for improvement and other reasons.

（10/14）

Neodymium plastic magnets:(.(404(.5,;

Product guideAs formed, these magnets achieve high dimensional accuracy and complex shaping.
These magnets are made by combining plastics with metal powder having a combination (Nd-Fe-B) similar to that ofsintered neodymium magnets and then forming the mixture. Since the magnets contain plastics, the magnetism is much
lower. As formed, however, these magnets offer the advantage of being processed into thin products with highdimensional precision and products of complex shaping. Moreover, isotropic magnets are easily magnetized radially andcan be magnetized in many varieties as well. Their temperature characteristics are a little lower than those ofneodymium magnets, and are unsuited for use at 80 C or higher.

■Magnetic characteristics
Residual flux density（Br）
kG ／ T

Magnetic coercive force（HCB）
kOe ／ kA/m

Magnetic coercive force（H CJ ）kOe ／ kA/m

（BH）
max
MGOe ／ kJ/m3

GPM-8

6.0~6.5
0.60~0.65

4.5~5.5
360~4408.0~10.0
640~800

7.5~8.5
60~68

GPM-8L

6.2~6.8
0.62~0.68

6.2~6.8
0.62~0.68

8.0~10.0
640~800

8.0~9.064~72

GPM-106.8~7.1
0.68~0.71

5.0~6.0400~480

8.0~10.0
640~800

9.5~10.5
76~84

GPM-10H

7.0~7.2
0.70~0.72

5.0~6.0400~480

9.0~11.0
720~880

10~11
80~88

GPM-12

7.2~7.7
0.72~0.77

5.5~6.5
440~5209.0~11.0
720~880

11~12
88~96

GPM-12D

7.2~7.7
0.72~0.77

5.5~6.5
440~52010.0~12.0
800~960

11~12
88~96

GPM-13L

7.5~8.3
0.75~0.83

5.0~6.0400~480

7.0~8.0
540~64012~13
96~104

Material name〈Composition of Nd-Fe-B bound magnet〉
Epoxy acid
2~9％

Epoxy coat1％

Nd-Fe-B powder
90~97％〈Nd-Fe-B powder〉
Co
B
0~15％
1％

Nd
26~28％

Fe
56~73％To use our products more correctly and safely, please order delivery specifications in which you can examine the characteristics and specifications ineven more detail. Please understand that specifications are subject to change without prior notice for improvement and other reasons.

（11/14）

Neodymium plastic magnets:(.(404(.5,;■Demagnetization curve
1.0

〈T〉

2.0

5.0

0

9〈KG〉

0.5

8

7

6

5

4

3

20℃

50℃

2

75℃ 100℃ 125℃ 150℃

1

-16
H〈kOe〉

-14

-12

-10

-8

-6

-4

0

-2

0

■Physical characteristics

Product nameTemperature coefficient（20℃~Tw）−％／℃

Density（D）
g ／ m3Curie temperature（Tc）℃

Vickers hardness（HV）＊Operating temperature（℃）
Tw

αBr
GPM-8

0.11

6.0

350

78~80

160

GPM-8L

0.12

6.0

300

78~80

160

GPM-10

0.10

6.0

350

78~80

160

GPM-10H

0.10

6.2

350

78~80

160

GPM-12

0.10

6.3

350

78~80

160

GPM-12D

0.08

6.3

400

78~80

170

GPM-13L

0.11

6.3

320

78~80

150

To use our products more correctly and safely, please order delivery specifications in which you can examine the characteristics and specifications ineven more detail. Please understand that specifications are subject to change without prior notice for improvement and other reasons.

（12/14）

Neodymium plastic magnets:(.(404(.5,;■Manufacturing process for magnets (outline)

MixingMelting and quenching
Coarse pulverization
Resin mixing
Forming
Hardening
Surface treatment(coating)
Magnetization

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Al-Ni-Co magnets:(.(404(.5,;

Product guide
These magnets are based mainly on iron (Fe), aluminum (Al), nickel (Ni) and cobalt (Co). The magnets are fragile andnot ductile. Therefore, after the raw metal is melted at high temperature and turned into an alloy, it is cast into a
casting mold. These magnets are therefore also known as cast magnets.
Al-Ni-Co magnets achieve high Br values and high temperature stability, readily cause low-temperature demagnetizationand thermal demagnetization, achieve high mechanical strength, and offer other advantages. However, these magnets
have low magnetic coercive force (Hcj) and readily undergo demagnetization due to an external magnetic field, areunsuited for thin products, and placed under other constraints. In the design process, it is therefore important to selecta method of magnetization that allows for sufficient shape and magnetic characteristics, and a method of assembly inwhich consideration is given to demagnetization.

■Magnetic characteristics
Residual flux density（Br）
kG ／ T

Magnetic coercive force（HCB）
kOe ／ kA/m

（BH）
max
MGOe ／ kJ/m3

Densityg ／ cm3

Al-Ni-Co 5

12.0
1.20

0.60
48

4.63
36.9

7.3

Al-Ni-Co 6

10.0
1.00

0.72
56

3.50
27.9

7.3

Al-Ni-Co 8

8.0
0.80

1.38
110

4.75
37.8

7.3

Al-Ni-Co 5

10.5
1.05

0.58
46

3.50
27.9

7.0

Al-Ni-Co 8

7.8
0.78

1.34
107

3.90
31.0

7.0

Material name
Cast

Material nameSintered〈Al-Ni-Co composition 〉
AI

Fe

Cu

Ni

Co

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Al-Ni-Co magnets:(.(404(.5,;■Manufacturing process for magnets (outline)

MixingMelting
Casting
Coarse processing
Heat treatment
Finish processing
Magnetization

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