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Zhu Zhou Summit New Material Co. Ltd

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guitar pick up magnet

Place of Origin : China

Brand Name : Summit

Certification : ISO9000

MOQ : 100

Price : 0.23-1.58

Packaging Details : According to The Product Performance Requirements.

Delivery Time : 20-30days

Payment Terms : T/T

Supply Ability : 500T/A

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Alnico Magnets Overview

Alnico magnetic material is an alloy of aluminum-nickel-cobalt which possesses an excellent temperature stability and high residual induction. However, its low coercive force limits its applications in many cases. Casting and sintering are two major processes used to manufacture the Alnico magnets.

Performance of Cast Alnico Magnets

CharacterIstics Model	Max. Energy Product	Br (Residual induction)	Hcb (Coercive Force)	Hcj (Intrinsic coercive Force)	Density	Temp.Coeffienct of Br.	Curie point	Remark
	(MGOe)	(KGs)	(KOe)	(KOe)	g/cm³	%/K	°C	Isotropic
SAlNiCo4/1	0.40-0.60	8.7-8.9	0.11-0.14	0.13-0.15	6.8	-0.02	750
SAlNiCo8/5	1.07-1.19	5.3-6.2	0.57-0.63	0.59-0.65	6.8	-0.02	750
SAlNiCo10/5	1.19-1.38	6.3-7.0	0.63-0.73	0.63-0.73	6.8	-0.02	780
SAlNiCo12/5	1.38-1.63	7.0-7.5	0.62-0.70	0.66-0.73)	7.0	-0.02	800
SAlNiCo14/5	1.63-1.88	7.3-8.0	0.59-0.63	0.63-0.67	7.1	-0.02	790
SAlNiCo14/6	1.76-2.00	6.2-8.1	0.70-0.81	0.73-0.83	7.1	-0.02	790
SAlNiCo14/8	1.76-2.00	5.5-6.1	0.94-1.11	1.00-1.16	7.1	-0.01	850
SAlNiCo18/10	2.00-2.39	5.7-6.2	1.16-1.26	1.24-1.34	7.2	-0.01	860
SAlNiCo29/6	3.64-4.15	9.7-12	0.73-0.80	0.75-0.83	7.2	-0.02	860	Anisotropic
SAlNiCo30/6	3.77-4.27	10-11	0.73-0.80	0.75-0.83	7.2	-0.02	860
SAlNiCo42/10	5.27-5.77	9.5-11	1.26-1.38	1.30-1.43	7.2	-0.01	860
SAlNiCo33/11	4.14-4.77	7-8	1.34-1.45	1.39-1.50	7.2	-0.01	860
SANiCo35/5	4.40-4.90	11-12	0.60-0.65	0.63-0.68	7.2	-0.02	850
SAlNiCo37/15	4.65-5.15	7.0-8.0	1.76-1.85	1.88-1.98	7.2	-0.01	870
SAlNiCo39/12	4.90-5.40	8.3-9.0	1.45-1.54	1.50-1.60	7.25	-0.01	860
SAlNiCo44/12	5.53-6.03	9-9.5	1.50-1.60	1.56-1.66	7.25	-0.01	860
SAlNiCo40/15	5.02-6.03	7.5-8.5	1.80-1.90	1.95-2.05	7.2	-0.01	870
SAlNiCo44/15	5.53-6.03	8.0-8.8	1.86-2.00	1.95-2.05	7.2	-0.01	870

Performance of Cast Alnico Magnets

Characteristics Model	Max. Energy Product	Br (Residual induction)	Hcb (Coercive Force)	Hcj (Intrinsic coercive Force)	Density	Temp.Coeffienct of Br.	Curie point	Remarks
	(MGOe)	(KGs)	(KOe)	(KOe)	g/cm³	%/K	°c	Isotropic
AlNiCo12/6	1.50	6.4	0.65	0.70	7.0	-0.03	810
AlNiCo13/6	1.63	7.5	0.65	0.70	7.0	-0.03	810
AlNiCo18/10	2.26	5.3	1.13	1.22	7.1	-0.01	860
AlNiCo20/11	2.51	6.0	1.26	1.36	7.3	-0.01	860
AlNiCo36/6	4.52	11.5	0.75	0.78	7.3	-0.02	850	Anisotropic
AlNiCo38/5	4.77	12.0	0.63	0.65	7.3	-0.02	850
AlNiCo40/5	5.03	12.5	0.62	0.63	7.3	-0.02	850
AlNiCo44/5	5.53	12.7	0.65	0.67	7.3	-0.02	850
AlNiCo52/6	6.53	13.0	0.71	0.72	7.3	-0.02	850
AlNiCo60/6	7.54	13.5	0.74	0.75	7.3	-0.02	860
AlNiCo38/11	4.77	8.5	1.38	1.41	7.3	-0.01	860
AlNiCo40/17	5.02	7.5	1.96	2.11	7.3	-0.01	870
AlNiCo46/12	5.78	9.3	1.51	1.56	7.3	-0.015	860
AlNiCo48/16	6.03	8.2	1.81	1.98	7.3	-0.01	870
AlNiCo72/12	9.04	10.5	1.43	1.46	7.3	-0.015	850
AlNiCo80/12	10.04	10.8	1.51	1.53	7.3	-0.015	850

Key Advantages

Sintered Alnico Magnets:

Excellent temperature stability
Strong corrosion resistance
The maximum working temperature is up to 500°c
Fine grain
Compact crystal.
Excellent magnetic consistence and evenness.
Suitable for small volume and complex shape magnets.

Cast Alnico Magnets:

Excellent temperature stability
Strong corrosion resistance
The maximum working temperature is up to 500°c
Excellent capacity
High density and magnetic properties
Shorter production lead time
Temperature factor of Br is the smallest among all the permanent magnets
Cast Alnico magnets can be produced in relatively complex shapes
Tooling for cast Alnico magnets is relatively low, since sand molds are generally used for the casting process.

Quick Leads

Density-7.34 g/cm³
Manufacturing process - casting (most common), or sintering.
Various shapes- blocks, bars, discs, rings, horseshoes, cylinders, etc.
Wide range of grades- from about 0105 to 0519. (First 2 digits represent BH.max, and second two digits represent Intrinsic Coercivity, Hci.)
Saturation magnetizing field required - about 5kOee.

Common Applications

Holding magnets Separators Sensors Security systems MRI Relays Magnetos

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