PERMANENT ALNICO MAGNETS:Available in different shapes and sizes
-Alnico Permanent Magnets:
offer excellent temperature stability and corrosion resistance.
When it comes to magnetic materials, alnico magnets are some of the most versatile and reliable options on the market. With their high-temperature capabilities and excellent magnetic properties, they are the go-to choice for many industrial and commercial applications.
But what exactly are alnico alloy magnets, and what makes them such a popular choice?
What are Alnico Magnets?
Alnico magnets are a type of alloy that contains aluminum, nickel, cobalt, iron, and sometimes copper. The name “alnico” is derived from these elements (Al-Ni-Co).
The exact composition of alnico alloy magnets can vary depending on the specific application requirements, but they typically contain around 5-26% aluminum, 8-40% nickel, 9-39% cobalt, 3-5% copper, and the rest iron. This combination of metals results in a material that has excellent magnetic properties, with a high coercive force and high remanence.
What Makes Alnico PERMANENT Magnets Unique?
One of the main benefits of alnico permanent magnets is their high-temperature capabilities. They can operate at temperatures up to 500 degrees Celsius, making them an ideal choice for high-temperature applications in industrial and commercial settings.
These magnets also have excellent magnetic properties, with high magnetic flux density and a high coercive force. This means that they can generate a strong magnetic field and maintain it even in the presence of external fields.
In addition to their high-temperature capabilities and excellent magnetic properties, these magnets are also corrosion-resistant, making them suitable for use in harsh environments.
If you need high-quality alnico permanent magnets for your industrial or commercial application, Sinoneo is the ideal choice. . We offer a wide range of alnico in various sizes, shapes, and compositions, and can customize our products to meet your specific requirements.
At Sinoneo, we are committed to providing our clients with the very best in magnetic materials and solutions. We use only the highest quality materials and cutting-edge technology to ensure that our products are reliable, durable, and effective for all your application needs.
Contact us today to learn more about how we can help you take your application to the next level with the very best alnico permanent magnets on the market.
THE APPLICATION OF
Alnico permanent magnets

Aerospace Industry
In aerospace applications, alnico permanent magnets are used where lightweight, high-temperature resistant magnets are needed, such as in aircraft instrumentation and so on.

musical instrument components
They are used in guitar pickups to convert the vibration of strings into electrical signals, affecting the tone quality. Their ability to provide a balanced and warm sound is highly valued by musicians.

Holding and Fastening Systems
They are used in various holding devices and fastening systems, such magnetic chucks in machining tools, latches, and closures. Their magnetic strength allows for secure holding without the need for mechanical fasteners.

Sensors and Measuring Instruments:
They are commonly found in various sensors, including hall-effect sensors, magnetometers, and reed switches. They are also used in precision instruments like balances and flow meters.

Electric motors and generators
These magnets are used in electric motors, generators, and alternators due to their high magnetic strength and temperature stability. They help convert electrical energy into mechanical energy and vice versa.

Educational and Demonstrative Tools
Because they are relatively strong yet safer and more affordable compared to rare earth magnets, alnico magnets are often used in classroom demonstrations to teach principles of magnetism.
Why us
REASON TO CHOOSE SINONEO FOR permanent alnico Magnets?
100% Quality Guarantee
Our permanent alnico magnets are manufactured to the highest standards. This ensures the best possible performance and reliability.
Excellence in service
We providing excellent customer service, including rapid responses to queries, efficient order processing, and comprehensive after-sales support.
Customized services for you
We can customize the size, shape and coating of alnico permanent magnets to meet your specific application requirements.
saving
We offer competitive pricing and strive to enhance your experience without exceeding your budget. Your satisfaction is our top priority.
Get a free Quote for your BUSINESS now!
We’d love to help you find the perfect Alnico magnets for your business! Just give Sinoneo a call today to learn more about how we can support you. With our expertise and commitment to quality, you can trust us to provide you with the best magnetic solutions on the market.
The technical date sheet of
ALNICO permanent Magnets
- MAGNETIC PROPERTIES OF Cast Alnico magnets
- MAGNETIC PROPERTIES OF Sintered Alnico magnets
- ALNICO MAGNETS MAKING PROCESS
Grade | Br | HcB | Hcj | (BH)max | Br | Hcj | Max Temp | MMPA Equivalents | ||||
KGs | mT | kOe | Ka/m | kOe | Ka/m | MGOe | Kj/m³ | TK(Br)%/K | TK(Hcj)%/K | ºC | ||
ISOTROPIC CAST ALNICO | ||||||||||||
LN10 | 6.5 | 650 | 0.48 | 38 | 0.5 | 40 | 1.25 | 10 | -0.035 | -0.025 | 450 | ALNICO3 |
LNG12 | 7.5 | 750 | 0.56 | 45 | 0.58 | 46 | 1.5 | 12 | -0.03 | -0.02 | 450 | ALNICO2 |
LNGT18 | 5.5 | 550 | 1.13 | 90 | 1.21 | 97 | 2.25 | 18 | -0.025 | 0.01 | 550 | ALNICO8 |
ANISOTROPIC CAST ALNICO | ||||||||||||
LNG34 | 11 | 1100 | 0.63 | 50 | 0.65 | 52 | 4.25 | 34 | -0.02 | 0.01 | 525 | ALNICO5 |
LNG37 | 11.8 | 1180 | 0.61 | 49 | 0.64 | 51 | 4.63 | 37 | -0.02 | 0.01 | 525 | |
LNG40 | 12 | 1200 | 0.63 | 50 | 0.65 | 52 | 5 | 40 | -0.02 | 0.01 | 525 | |
LNG44 | 12.5 | 1250 | 0.65 | 52 | 0.68 | 54 | 5.5 | 44 | -0.02 | 0.01 | 525 | |
LNGT34 | 11.5 | 1150 | 0.73 | 58 | 0.75 | 60 | 3.5 | 28 | -0.02 | 0.03 | 525 | ALNICO6 |
LNG52 | 13 | 1300 | 0.7 | 56 | 0.73 | 58 | 6.5 | 52 | -0.02 | 0.03 | 525 | ALNICO5DG |
LNG60 | 13.5 | 1350 | 0.73 | 58 | 0.75 | 60 | 7.5 | 60 | -0.02 | 0.03 | 525 | ALNICO5-7 |
LNGT38 | 8 | 800 | 1.38 | 110 | 1.4 | 112 | 4.75 | 38 | -0.025 | 0.01 | 550 | ALNICO8 |
LNGT40 | 8.5 | 850 | 1.44 | 115 | 1.46 | 117 | 5 | 40 | -0.025 | 0.01 | 550 | |
LNGT44 | 9 | 900 | 1.44 | 115 | 1.46 | 117 | 5.5 | 44 | -0.025 | 0.01 | 550 | |
LNGT36J | 7.2 | 720 | 1.88 | 150 | 1.9 | 152 | 4.5 | 36 | -0.025 | 0.01 | 550 | ALNICO8HC |
LNGT60 | 10 | 1000 | 1.38 | 110 | 1.4 | 112 | 7.5 | 60 | -0.025 | 0.01 | 550 | ALNICO9 |
Grade | US Standard | Br | Hcb | (BH)max | Tc | Tw | T.C.α(Br) |
mT/Gs | kA/m/Oe | kJ/m3/MGOe | ℃ | ℃ | %/℃ | ||
FLN8 | S.ALNICO3 | 500/5000 | 40/500 | 8/1.00 | 760 | 450 | -0.022 |
FLNG12 | S.ALNICO2 | 700/7000 | 48/600 | 12/1.50 | 810 | 450 | -0.014 |
FLNGT18 | S.ALNICO7 | 600/6000 | 90/1130 | 18/2.20 | 860 | 450 | -0.02 |
FLNG34 | S.ALNICO5 | 1200/12000 | 48/600 | 34/4.25 | 890 | 450 | -0.016 |
FLNGT28 | S.ALNICO6 | 1050/10500 | 56/700 | 28/3.50 | 850 | 450 | -0.02 |
FLNGT38 | S.ALNICO8 | 800/8000 | 120/1500 | 38/4.75 | 850 | 450 | -0.02 |
FLNGT42 | S.ALNICO8 | 880/8800 | 120/1500 | 42/5.25 | 820 | 450 | -0.02 |
FLNGT33J | S.ALNICO8HC | 700/7000 | 140/1750 | 33/4.13 | 850 | 450 | -0.025 |
Alnico magnets are manufactured either by casting or sintering. Alnico is produced by conventional foundry methods using resin bonded sand molds or powder metal manufacturing methods. Sintering Alnico is suitable for complex geometries.
Most Alnico produced is anisotropic meaning that the magnetic axle of the grains is oriented in one direction. The orientation is achieved by a heat treatment process after casting or sintering.
The process involves heating the casting or sintered part above its Curie Temperature and then cooling it at a controlled rate in the presence of a directionalized magnetic field. Final shaping of the Alnico materials is achieved by abrasive grinding and cutting where close tolerances are required.
Process Flow:Raw Material—–Mixing—Melting—–Heat Treatment—–Magnetic Testing—-Grinding—–Inspection—–Packing and Shipping
HAVEN’T FIND WHAT ARE YOU LOOKING FOR?
If you have not yet found what you are looking for then you can simply click “CONTACT US” for expert technical advice.Sinoneo is the professional permanent alnico magnets manufacturer and supplier in China. Our magnet engineers will help you get exactly what you need – for your retail or industrial applications – in a short time with high quality at a better price.
Choose our Alnico Permanent Magnets for a durable and versatile magnetic solution that can withstand high temperatures and harsh environments.
Faq
Read The FREQUENTLY ASKED QUESTIONS
How does their magnetic strength compare to other magnet types, and what factors influence their strength?
Permanent Alnico magnets have a lower magnetic strength compared to neodymium magnets, but their strength is still significant. Factors influencing their strength include the alloy composition, manufacturing process, and magnet’s shape and size.
What are the key advantages compared to other types of permanent magnets, such as neodymium magnets?
Alnico magnets offer several advantages over other types of magnets, including:
- Excellent temperature stability: Alnico magnets retain their magnetic properties well over a wide range of temperatures, making them ideal for applications where temperature fluctuations are common.
- Good corrosion resistance: Alnico magnets are resistant to corrosion, making them suitable for use in harsh environments.
- Relatively low cost: Compared to other rare-earth magnets, alnico magnets are relatively affordable, making them a cost-effective option for various applications.
What is the maximum operating temperature range for alnico magnets, and how does their performance degrade at higher temperatures?
Alnico magnets have a maximum operating temperature range of around 550°C (1022°F). Their performance gradually degrades as the temperature increases, with a significant decrease in magnetic strength occurring beyond the maximum operating temperature.
Can alnico magnets be easily customized in terms of size, shape, and magnetic orientation for specific application needs?
Yes, alnico magnets can be easily customized to meet specific application needs. They can be manufactured in various shapes and sizes, with the magnetic orientation tailored to specific requirements. This customization allows for optimal integration into different applications.