Sign In | Join Free | My spintoband.com
spintoband.com
Zhu Zhou Summit New Material Co. Ltd
Home > speaker magnets >

Good quality attractive price ferrite ring speaker magnet

Good quality attractive price ferrite ring speaker magnet

Place of Origin : China
Brand Name : Summit
Certification : ISO9000
MOQ : 100
Price : 0.35-2.28
Packaging Details : According to The Product Performance Requirements.
Delivery Time : 20-30days
Payment Terms : T/T
Supply Ability : 500T/A
Type : Permanent
Composite : Ferrite Magnet
Shape : ring
Application : Speaker Magnet
Contact Now

Hard Ferrite (ceramic) magnets, composed of barium or strontium, were developed in the early 1960's as an alternative to the more expensive metallic magnets. This class of magnet is very hard, brittle and possesses lower energy characteristics compared to other magnetic materials. However, it is very popular and widely used because of its excellent resistance to demagnetizaion, corrosion, and the advantageous pricing.

Ferrite magnets are manufactured by pressing, sintering, or injection molding. These magnets can be both anisotropic and isotropic. Anisotropic grades are oriented in the manufacturing direction and must be magnetized in the direction of orientation. Isotropic grades are not oriented and can be magnetized in any direction.


Physical property of hard ferrite magnets

Typical Physical Properties

Curie Temperature (°C)

450

Maximum Operating Temperature (°C)

250

Hardness (Hv)

480-580

Density (g/cm3)

4.8 - 4.9

Relative Recoil Permeability (μrec)

1.05 - 1.20

Saturation Field Strength, kOe (kA/m)

10 (800)

Temperature Coefficient of Br (%/°C)

-0.2

Temperature Coefficient of iHc (%/°C)

0.3

Tensile Strength (N/mm)

<100

Transverse Rupture Strength (N/mm)

300


Mostly Used national standard - SJ285-77 permanent ferrite magnet standard

Grade

Br

Hcb

Hcj

BHmax

kGs

mT

kOe

kA/m

kOe

kA/m

KJ/m3

MGOe

Y10T(=C1)

2.00/2.18

200/218

1.57/1.82

125/145

2.64/3.14

210/250

6.5/8.0

0.8/1.0

Y25

3.60/3.70

360/370

1.70/1.88

135/150

1.76/2.14

140/170

22.5/25.3

2.8/3.2

Y30(=C5)

3.80/3.85

380/385

2.40/2.64

191/210

2.50/2.51

199/220

26.0/28

3.4/3.7

Y30BH

3.80/3.90

380/390

2.80/2.95

223/235

2.90/3.08

231/245

27.0/30.0

3.4/3.7

Y33

4.10/4.20

410/420

2.77/2.95

220/235

2.83/3.01

225/240

31.5/33.0

4.0/4.2

Y35

4.00/4.10

400/410

2.20/2.45

175/195

2.26/2.51

180/200

30.0/32.0

3.8/4.0

C8(=C8A)

3.85/3.90

385/390

2.95/3.20

235/255

3.05/3.33

242/265

27.8/30.0

3.5/3.7

C10

4.00/4.10

400/410

3.62/3.77

288/300

3.51/3.60

280/287

30.4/31.9

3.8/4.0



China Customized Inflatable Bumper Ball Game Bubble Adult Grass CE supplier

Good quality attractive price ferrite ring speaker magnet Images

Inquiry Cart 0
Send your message to this supplier
 
From:
Enter your email please.
To: Zhu Zhou Summit New Material Co. Ltd
Subject:
Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0