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Corrosion Resistent Round Alnico Bar Magnet For Relays

Corrosion Resistent Round Alnico Bar Magnet:
Material:Cast alnico magnet
Grade: Alnico5, Alnico 5DG, Alnico 500, Alnico 38/11
Size:customized
Magnetism direction: Customzied Specific Requirements
Tolerance: +/-0.05mm
Application:Relays,Safety Controls,Magnetic switches etc.

Quantity:
Alnico Magnet Description:
Alnico magnets are made primarily from aluminum, nickel, cobalt, copper, iron and sometimes titanium. Among all the available magnetic materials, they have high magnetic flux density, resistance to corrosion and excellent temperature stability, the maximum working temperature up to 600℃.

There are two different manufacturing process for Alnico: Cast and Sintered Alnico. Cast Alnico can be made into intricate and complex shapes, which is not possible with other magnetic materials. Sintered Alnico is manufactured using a powder metallurgy process. while slightly weaker than cast alnico, It exhibits superior mechanical characteristics .

Competitive Advantages

 

1. Advanced techniques in producing long rods 

2. Tight tolerance as +/-0.01mm

3. Dimensional Stability

4. Comparatively high magnetic properties

5. Excellent temperature stability

6. Strong corrosion resistance

7. The maximum working temperature is up to 550°c

8. Excellent capacity

9. High density and magnetic properties

10.Cast AlNiCo magnets can be produced in relatively complex shapes

 
Round Alnico Bar Magnet Applications:

Sensors and transformers

Security  systems 

Relays

Instrumentations

Magnetic switches

Safety Controls
 

Size Specifications:
 
Diameter (MM) Thickness/Height/Length (MM)
1.5-3.0 1.0-25.0
3.0-5.0 1.0-102.0
5.0-30.0 1.0-300.0
30.0-50.0 3.0-300.0
50.0-100.0 5.0-300.0
100.0-260.0 20.0-400.0

Physical Properties of Cast Alnico
Curie Temperature () 760-890
Max. Operating Temperature () 450-550
Resistivity (μohm.cm) 47-54
Hardness (Hv) 520-630
Density (g/cm⊃3;) 6.90-7.30
Relative Recoil Permeability (μrec) 1.70-4.70
Saturation Field Strength (kOe,kA/m) 2.7-6.3/215-500
Temperature Coefficient of Br (%/) -0.025 ~ -0.02
Temperature Coefficient of iHc (%/) +0.01 ~ +0.03


USA standard - permanent cast AlNiCo magnet industry standard of USA (MMPA)
Grade  
Br
Hcb Hcj BHmax Density %change Per C Tw Max Remark
kGs mT Oe kA/m Oe kA/m KJ/m3 MGOe g/cm3 %K
AlNiCo1 7.2 720 470 37 480 38 11.1 1.4 6.9 -0.03 450 Isotropic
AlNiCo2 7.5 750 560 45 580 46 13.5 1.7 7.1 -0.03 450
AlNiCo3 7.0 700 480 38 500 40 10.7 1.35 6.9 -0.03 450
AlNiCo5 12.8 1280 640 51 640 51 43.8 5.5 7.3 +0.02 525 Anisotropic
AlNiCo5DG 13.3 1330 670 53 670 53 57.7 6.5 7.3 +0.02 525
AlNiCo5-7 13.5 1350 740 59 740 59 59.7 7.5 7.3 +0.02 525
AlNiCo6 10.5 1050 780 62 800 64 31.0 3.9 7.3 +0.02 525
AlNiCo8 8.2 820 1650 131 1860 148 42.2 5.3 7.3 +0.02 550
AlNiCo8HC 7.2 720 1900 151 2170 173 39.8 5.0 7.3 +0.02 550
AlNiCo9 10.6 1060 1500 119 1500 119 71.6 9.0 7.3 +0.02 550
 
Typical Magnetic Performance Range for Cast Alnico Magnet, other standard
Grade Br Hcj BHmax USA stand IEC stand DIN stand UK stand
kGs mT Oe kA/m KJ/m3 MGOe MMPA IEC DE UK
LN10 6.5 650 530 42 10 1.2 AlNiCo3 AlNiCo9/3 / /
LNG11 7.2 720 480 37 11.2 1.4 AlNiCo1 AlNiCo8/4 AlNiCo120 AlNi
LNG13 7.0 700 620 50 13 1.6 AlNiCo2 AlNiCo12/6 AlNiCo160 AlNiCo
LNGT18 5.8 580 1250 100 18 2.2 I. AlNiCo 8 AlNiCo17/9 / /
LNG16 8.0 800 660 53 16 2.0 [AlNiCo4] / / /
LNG34 11.8 1180 550 44 34 4.25 [AlNiCo5C] / / /
LNG37 12.0 1200 600 48 37 4.65 AlNiCo37/5 AlNiCo500
 
Alcomax2
LNG40 12.2 1220 630 50 40 5.0 AlNiCo5 / /
LNG44 12.5 1250 650 52 44 5.5 AlNiCo44/5 Alcomax3
LNG52 13.0 1300 690 55 52 6.5 AlNiCo5DG AlNiCo52/6 AlNiCo600 Alcomax3 S.C.
LNG60 13.3 1330 750 60 60 7.5 AlNiCo5-7 / AlNiCo700 Columax
LNGT28 10.5 1050 700 56 28 3.5 AlNiCo6 AlNiCo26/6 AlNiCo400 Alcomax4
LNGT30 10.5 1050 750 60 30 3.75


LNGT32 8.0 800 1280 102 32 4.0 AlNiCo8 AlNiCo38/11 AlNiCo350 Hycomax2
LNGT40 8.2 820 1400 112 40 5.0
LNGT44 8.8 880 1540 123 44 5.5 AlNiCo8B / AlNiCo450 Hycomax3
LNGT48A 9.3 930 1540 123 48 6.0 AlNiCo8HE


LNGT48B 8.5 850 1650 132 48 6.0


LNGT60 9.0 900 1380 110 60 7.5 AlNiCo60/11 / /
LNGT72 10.5 1050 1410 112 72 9.0 AlNiCo9 / / /
LNGT80 10.8 1080 1540 123 80 10.0


LNGT88 11.0 1100 1575 126 88 11.0


LNGT92 11.5 1150 1575 126 92 11.5


LNGT36J 7.0 700 1750 140 36 4.5 AlNiCo8HC AlNiCo36/15 / /
LNGT40J 7.2 720 1900 152 40 5.0


LNGT44J 8.2 820 1800 144 44 5.5 AlNiCo44/15 / /
 
Cast Alnico Process Chart
Raw material -> forming- >smelting-> heat treatment-> surface treatment->precision grinding->inspection ->packing

Sintered Alnico Process Chart
Raw material ->powder-> forming-> sintered- >heat treatment-> surface treatment->precision grinding –>inspection- >packing
 
重传alnico process flow

CONTACT US

  Hang Zhou XiaoShan Dunben Magnet  Co., Ltd 
 1702, Unit 2, Building 1, Dacheng Mingzuo, Shiixn Road, Xiaoshan, Hangzhou, Zhejiang, China
  86-571-82750965 
  86-571-82751287
 wang@dbmagnet.com
 

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