No Matter you buy 1 pcs or 100,000 pcs of magnets, you can not find better service elsewhere.
Samarium
Cobalt magnets, also known as rare earth magnets, offer the best value
when comparing performance and size in high temperature or adverse
environments.
Samarium
Cobalt magnets are higher in cost, specially ring samarium cobalt ring
magnet, but magnetically very strong and typically allow for dimensional
reductions with higher precision.
GME
can supply Samarium Cobalt Magnets with custom shapes and sizes,
made-to-order Samarium Cobalt Magnets, or we can assist in developing a
solution specifically for your application.
Specifications:
Dimensions: D70xD60x20 mm thick with chamfer
Tolerances: ±0.15 x ±0.15xmmx±0.15xmm
Material: YXG-28H
Plating/coating: no coated
Magnetization direction: thru thickness
Maximum operating temperature: (350°C)
Shape:
Disc, Ring, Block, segment, Cylinder, Trapezoid, Customized
design(Design proper magnets for clients specific requirements)
Characteristics: High performance, low temperature coefficient, high working temperature 350 degree ,
It doesn’t need to be coated because it is difficult to be eroded and oxidized.
Application: Motors, Aviation and spaceflight, National defense and military affairs, Microwave appliance,
Medical apparatus, Auto industry, Machine gearings, sensors, meters and instruments.
smco ring magnet D70xD60x20
Specification:
Size |
D70xD60x20 |
Grade |
YXG-28H |
Max Operating Temperature |
350°C |
MOQ |
500 pcs |
Leading Time |
30-35 working days |
Sample |
Yes |
Certificate |
ISO2000, TS16949, RoHS, CE, SGS & REACH |
Payment |
T/T, PayPal, Western Union |
Packing: Foam Box Carton Anti-Magnet Air Packing: Iron Box
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Available Grades
of Samarium Cobalt Magnets:
of Samarium Cobalt Magnets:
Many grades of Samarium Cobalt exist to
support a variety of industrial and commercial applications.
support a variety of industrial and commercial applications.
The range of
Samarium Cobalt Magnet grades is typically 16 to 32 MGOe.
Samarium Cobalt Magnet grades is typically 16 to 32 MGOe.
These ranges allow
for balancing cost, magnetic performance, and operational temperature
resistance.
for balancing cost, magnetic performance, and operational temperature
resistance.
There are two main types
of Samarium Cobalt magnet alloy.
of Samarium Cobalt magnet alloy.
Typically denoted as (1-5)
having one Samarium atom per 5 Cobalt atoms, and the newer Samarium Cobalt
magnet alloy, typically denoted as (2-17),
having one Samarium atom per 5 Cobalt atoms, and the newer Samarium Cobalt
magnet alloy, typically denoted as (2-17),
having an atomic ratio of two
Samarium atoms to 14 – 17 Cobalt atoms.
Samarium atoms to 14 – 17 Cobalt atoms.
(The 14 – 17 atoms are actually
comprised of a mix of transition metals, Cobalt, Copper, and Iron, where Cobalt
is the most abundant.)
comprised of a mix of transition metals, Cobalt, Copper, and Iron, where Cobalt
is the most abundant.)
Samarium Cobalt (1-5):
Has an Energy Product
range of 15 – 24 MGOe and can typically operate up to 250°C.
range of 15 – 24 MGOe and can typically operate up to 250°C.
By weight
this alloy will be compromised of approximately 35% Samarium and the balance
being Cobalt.
this alloy will be compromised of approximately 35% Samarium and the balance
being Cobalt.
Typically the more recent (2-17) Samarium Cobalt magnet
alloy will be selected for new applications due to its higher Energy Densities
and temperature operating points.
alloy will be selected for new applications due to its higher Energy Densities
and temperature operating points.
Samarium Cobalt (2-17):
Has an Energy Product
range of 21 – 32 MGOe and typically operates up to 300°C to 350°C.
range of 21 – 32 MGOe and typically operates up to 300°C to 350°C.
By
weight this alloy will be comprised of approximately 25% Samarium and the
balance being the Transition Metal blend mostly comprised of Cobalt.
weight this alloy will be comprised of approximately 25% Samarium and the
balance being the Transition Metal blend mostly comprised of Cobalt.
The
higher Energy Density and operating temperatures allows this magnet alloy to be
a favorite choice of designers when magnetic and environmental performance is
paramount.
higher Energy Density and operating temperatures allows this magnet alloy to be
a favorite choice of designers when magnetic and environmental performance is
paramount.
Reversible Temperature Coefficient for Br (α) |
||
Temperature Range (°C) |
Induction Br (α) SmCo 1-5 (%)/°C |
Induction Br (α) SmCo 2-17 (%)/°C |
-100°C to 20°C |
-0.045% |
-0.030% |
20°C to 100°C |
-0.045% |
-0.030% |
100°C to 200°C |
-0.050% |
-0.035% |
α = Δ Br / Δ T * 100 (Br @ 20°C) [ΔT = Relevant ranges listed above.] |
||
Samarium Cobalt Magnets - Physical Properties |
|||
Property |
Units |
Values SmCo (1-5) |
Values SmCo (2-17) |
Vickers Hardness |
Hv |
450 - 550 |
500 - 600 |
Density |
g/cm3 |
8.3 |
8.4 |
Curie Temp TC |
°C |
700 - 750 |
800 - 850 |
Curie Temp TF |
°F |
1,292 - 1,382 |
1,472 - 1,562 |
Specific Resistance |
μΩ⋅Cm |
53 |
86 |
Bending Strength |
N/mm2 |
1.8 x 108 |
1.5 x 108 |
Compressive Strength |
N/mm2 |
10 x 108 |
8 x 108 |
Thermal Expansion Parallel (∥) to Orientation (M) |
°C-1 |
6 x 10-6 |
8 x 10-6 |
Thermal Expansion Perpendicular (⊥) to Orientation (M) |
°C-1 |
13 x 10-6 |
11 x 10-6 |
Young's Modulus |
kg/mm2 |
1.6 x 104 |
1.2 x 104 |
Corrosion Resistance:
SmCo Rare Earth magnets
are very resistant to corrosion and do not normally requires any surface
treatment, like neodymium magnet.
are very resistant to corrosion and do not normally requires any surface
treatment, like neodymium magnet.
Samarium Cobalt magnets exhibit good
corrosion resistance when compared to Neo magnets.
corrosion resistance when compared to Neo magnets.
For most applications a
coating or plating is not required, but it should be considered when operating
in environments that are acidic, have high moisture, or are in a vacuum.
coating or plating is not required, but it should be considered when operating
in environments that are acidic, have high moisture, or are in a vacuum.
Coatings and metal plating
can be applied to increase the ability to clean the magnet.
can be applied to increase the ability to clean the magnet.
A metal
plating gives greater cleanliness for vacuum and medical applications.
plating gives greater cleanliness for vacuum and medical applications.
Nickel
plating can be applied to fasciculate soldering the magnet and this is
especially used for adhesion to a printed circuit board.
plating can be applied to fasciculate soldering the magnet and this is
especially used for adhesion to a printed circuit board.
Low environmental
reactivity makes Samarium Cobalt magnets good candidates for Medical and
Aerospace applications.
reactivity makes Samarium Cobalt magnets good candidates for Medical and
Aerospace applications.
It is always advisable to empirically evaluate the
magnet alloy in the operational environment before deciding on a design
path.
magnet alloy in the operational environment before deciding on a design
path.
Widely Samarium Cobalt magnets used in Medical applications will be
parylene coating in addition to being clad in an application appropriate
material.
parylene coating in addition to being clad in an application appropriate
material.
Samarium Cobalt
magnets can operate at temperatures up to 500F (260C), making these rare earth
magnets ideal for high heat applications.
Sintered
Samarium Cobalt rare earth magnets are extremely resistant to demagnetization
and they can operate at temperatures up to 500F (260C).
There are many Samarium
Cobalt grades which can withstand higher temperatures, but several factors will
dictate the overall performance of the Samarium Cobalt rare earth magnet.
One
of the most pertinent variables is the geometry of the magnet or magnetic
circuit.
Samarium Cobalt magnets which are relatively thin compared to their
pole cross-section (Magnetic Length / Pole Area) will demagnetize easier than
Samarium Cobalt magnets which are thick.
Magnetic geometries utilizing backing
plates, yokes, or return path structures will respond better to increased
temperatures.
The maximum recommended operating temperatures listed on the
Samarium Cobalt magnetic characteristics page do not take into account all
geometry conditions.
Please contact a GME team member for Samarium Cobalt rare
earth magnet design assistance when elevated temperatures are involved in your
application.
Magnetization Options:
Although most commercial
magnets are anisotropic, which means they have a preferred direction of
magnetization,
magnets are anisotropic, which means they have a preferred direction of
magnetization,
various pole configurations can be achieved without conflicting
without conflicting with a Samarium Cobalt Magnet’s orientation.
without conflicting with a Samarium Cobalt Magnet’s orientation.
Most useful commercial magnets are
anisotropic which means that they have an “Easy” or preferred direction of
magnetization and that an orientation field was applied during the compaction
stage of the manufacturing process.
anisotropic which means that they have an “Easy” or preferred direction of
magnetization and that an orientation field was applied during the compaction
stage of the manufacturing process.
It is essentially impossible to magnetize
the resulting anisotropic magnet alloy other than in the Direction of
Orientation;
the resulting anisotropic magnet alloy other than in the Direction of
Orientation;
however, various pole configurations can be achieved without
conflicting with the magnet material’s orientation.
conflicting with the magnet material’s orientation.
Below are conventional and standard
industry options for the MAGNETIZATION directions of SmCo Rare Earth / Samarium
Cobalt Magnets.
industry options for the MAGNETIZATION directions of SmCo Rare Earth / Samarium
Cobalt Magnets.
Compliance and
Intellectual Property Considerations:
Intellectual Property Considerations:
Samarium Cobalt magnets manufactured by GME
Magnetics are compliant with Intellectual Property Rights, Environmental
Restrictions, and Conflict Mineral usage.
Magnetics are compliant with Intellectual Property Rights, Environmental
Restrictions, and Conflict Mineral usage.
DFARS Compliant
RoHS, RoHS II and REACH
Dodd Frank Wall Street
Reform Act (Section 1502)
We would love to see how you have used our magnets
Simply send us a photo of your magnets in use and if we use it on
our website we will return you $10 next order (Amount more than $1000).
Keep magnets away from kids and animals.
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