China permanent magnet manufacturer: www.rizinia.com

AlNiCo Rod Magnet

Port: Ningbo or Shanghai, China 
Production Capacity: 500000000PCS/Season
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Shape: Rod
Application: Speaker Magnet, Industrial Magnet, Solenoid, Motor Magnet
Coating: Plain
Grade: Fln8~Flngt42
Sample: Avaliable
OEM: Acceptable

  • PRODUCT DETAIL

Size: Customised
Material: AlNiCo Magnet
Trademark: Actility
Transport Package: Carton
Specification: Customised
Origin: Zhejiang, China
HS Code: 8505111000

Alnico rod magnets are mainly composed of aluminum, nickel, cobalt, copper, iron and some transition metal elements. Its main feature is high remanence and high temperature resistance. The shapes and sizes vary, including square, circle, circle, round bar, horseshoe and suction parts. alnico magnets are still commonly used in various industries for specific jobs such as high temperature handling equipment and manufacturing of sensors, to name a few.
Alnico rod magnets produce magnetic field strength at their poles as high as 1500 gauss (0.15 tesla), or about 3000 times the strength of Earth’s magnetic field. Some brands of alnico are isotropic and can be efficiently magnetized in any direction. Other types, such as alnico 5 and alnico 8, are anisotropic, with each having a preferred direction of magnetization, or orientation. Anisotropic alloys generally have greater magnetic capacity in a preferred orientation than isotropic types. Alnico’s remanence (Br) may exceed 12,000 G (1.2 T), its coercivity (Hc) can be up to 1000 oersteds (80 kA/m), its energy product ((BH)max) can be up to 5.5 MG·Oe (44 T·A/m). This means that alnico can produce a strong magnetic flux in closed magnetic circuits, but has relatively small resistance against demagnetization. The field strength at the poles of any permanent magnet depends very much on the shape and is usually well below the remanence strength of the material.

Where are Alnico Magnets Used?

Despite being overshadowed and largely replaced by rare earth magnets, Alnico still perform better than their successors in specific situations and therefore are still used for many applications which require high operating temperatures.
Alnico magnets are most commonly used in the following:

  • Electric motors
  • Microphones
  • Engineering applications
  • Aerospace applications
  • Military applications
  • Sensors
  • Bearings

Strength of AlNiCo Magnet

Alnico has high magnetic strength and low resistance to demagnetization and remagnetization.
Before the development of rare earth carbides, Al-Ni-Co carbides were currently the strongest type of carbide.
Today, AlNiCo magnets have been replaced by stronger rare earth magnets such as neodymium magnet.

Specification of AlNiCo Magnet

Products

AlNiCo Magnet

Material

Sintered or Cast Aluminum nickel cobalt magnet

Features

1. The high energies and relatively low coercivity
2. The excellent ability to withstand extreme temperature stability
3. High magnetic flux density and resistance to demagnetization from vibration and shock
4. Excellent resistance to corrosion, no coating is needed for surface protecting

Coating

No

Shapes

Ring, bar, cylinder, arc, U-shaped, and other irregular shapes 

could be manufacture according to customers’s sample or blue print.


Grade
(Sintered Alnico)

 
FLN8, FLNG12,FLNGT14,FLNGT18, FLNG28, FLNG31, FLNG33,FLNGT38,FLNGT42.

Grade
(cast Alnico)

 
LN9,  LN10, LNG12, LNG13, LNG37, LNG40, LNG44, LNG52, LNG60, LNGT28,  LNG36J ,LNGT18, LNGT32, LNG40,LNGT32, LNGT40,LNGT60,LNGT72

Max working 
temperature

 
600 centigrade

Tolerance

Our standard tolerance is +/-0.01-0.10mm, but if you have specific requirements, please let us know and we will make our efforts to do it.

Applications

Alnico magnets are widely used in industrial and consumer applications where strong permanent magnets are needed; examples are electric motors, electric guitar pickups, microphones, sensors, loudspeakers, traveling-wave tubes, and cow magnets. In many applications they are being superseded by rare earth magnets, whose stronger fields (Br) and larger energy products (BHmax) allow smaller size magnets to be used for a given application.

Performance of AlNiCo Magnet

Item

Grade

Remanence:Br

Coercivity:bHc

Coervity:iHc

Max.Energy Product

Br(Gs)

bHc(Oe)

iHc(Oe)

(BH)max(MGOe)

Cast

Alnico 5

12,800

640

640

5.5

Alnico 5DG

13,300

670

670

6.5

Alnico 5-7

13,500

740

740

7.5

Alnico 6

10,500

780

800

3.9

Alnico 8

8,200

1,650

1,860

5.3

Sintered

Alnico 5

10,900

620

630

3.9

Alnico 6

9,400

790

820

2.9

Alnico8

7,400

1,500

1,690

4

Production 
Flow Diagram

1. Sintered AlNiCo: Raw Material→Mixing→Power→Pressing→Sintering→Heat Treatment→Magnetic Testing→Grinding→Inspection→Final Product
2. Cast AlNiCo: Raw Material→Mixing→Melting→Molding Casting→Heat Treatment→Magnetic Testing→Grinding→Inspection→Final Product

Properties of AlNiCo Magnet

Grade
Equivalent
MMPA
Class
Remanence Br Coercive Force Hcb Maximum Energy Product  (BH)max
Reversible
Temp.   Coefficient 
Reversible
Temp.     Coefficient 
Curie Temp   (TC) Temp. Coefficient  (TW)
mT Gs KA/m Oe KJ/m3 MGOe %/ºC %/ºC ºC ºC
LN10 ALNICO3 600 6000 40 500 10 1.2 -0.03 -0.02 810 450
LNG13 ALNICO2 700 7000 48 600 12.8 1.6 -0.03 0.02 810 450
LNGT18 ALNICO8  580 5800 100 1250 18 2.2 -0.025 0.02 860 550
LNG37 ALNICO5 1200 12000 48 600 37 4.65 -0.02 0.02 850 525
LNG40 1250 12500 48 600 40 5
LNG44 1250 12500 52 650 44 5.5
LNG52 ALNIC05DG 1300 13000 56 700 52 6.5
LNG60 ALNICO5-7 1350 13500 59 740 60 7.5
LNGT28 ALNICO6 1000 10000 57.6 720 28 3.5 -0.02 0.03 850 525
LNGT36J ALNICO8HC 700 7000 140 1750 36 4.5 -0.025 0.02 860 550
LNGT38 ALNICO8 800 8000 110 1380 38 4.75 -0.025 0.02 860 550
LNGT40 820 8200 110 1380 40 5 -0.025 860 550
LNGT60 ALNICO9 950 9500 110 1380 60 7.5 -0.025 0.02 860 550
LNGT72 1050 10500 112 1400 72 9 -0.025 860 550

 

Grade

 

Br

 

Hcj

 

(BH)max

 

Tc

 

Tw

 

aBr

mT

Gs

kA/m

Oe

kJ/m3

MGOe

°C

°C

%/°C

FLN8

500/5000

40/500

9/1.13

760

450

-0.022

FLNG12

700/7000

48/600

12.4/1.55

810

450

-0.014

FLNGT18

600/6000

90/1130

18/2.20

860

450

-0.02

FLNG34

1200/12000

48/600

34/4.25

890

450

-0.016

FLNG37

1250/12500

48/600

37/4.62

890

450

-0.016

FLNGT28

1050/10500

60/600

28/3.50

850

450

-0.02

FLNGT38

800/8000

120/1500

38/4.75

850

450

-0.02

FLNGT42

880/8800

120/1500

42/5.25

820

450

-0.02

FLNGT33J

700/7000

140/1750

33/4.13

850

450

-0.025

China AlNiCo rod magnets Manufacturer www.rizinia.com supplies AlNiCo rod magnet for scientific experiments or for industrial applications, in kinds of materials such as NdFeB/NIB/neodymium iron boron, etc.
This product is not a toy and is not to be used by children.

Summary
ymagnet 1 - AlNiCo Rod Magnet
Author Rating
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Brand Name
Actility
Product Name
AlNiCo Rod Magnet
Price
USD 0.1-9999
Product Availability
Pre-Order Only
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