1/4" Rare Earth Cubes/Disc/Rings/Cylinders Samarium Cobalt SmCo 17-5 Magnet

Product

1/4" Rare Earth cubes/Disc/rings/cylinders samarium cobalt SmCo 17-5 Magnet

Shape

Disc /Round /Disk /Acr /cylinder /block

Material

Samarium Cobalt

Grade

GME-Smco

Magnetized

as per request

MOQ

8000 pcs

Leading Time

25-35 working days

Sample

Yes

Certificate

ISO2000, TS16949, RoHS, CE, SGS &REACH

Payment

T/T, PayPal, Western Union

Samarium Cobatl magnets:good thermal stability,resistant to corrosion,resistant to demagnetizationA samarium-cobalt (SmCo) magnet, atype of rare earth magnet, is astrong permanent magnet made of an alloy of samarium and cobalt.
They are generally ranked similarly in strength to neodymium magnets, but have higher temperature ratings and higher coercivity.
samarium-cobalt (SmCo) magnets are brittle, and prone to cracking and chipping. Samarium-cobalt magnets have maximum energy products (BHmax) that range from 16 megagauss-oersteds (MGOe) to 33 MGOe, approx. 128 kJ/m3 to 264 kJ/m3; their theoretical limit is 34 MGOe, about 272 kJ/m3.
samarium-cobalt (SmCo) magnets are available in two "series", namely Series 1:5 and Series 2:17.
Sintered Samarium Cobalt magnets exhibit magnetic anisotropy, meaning they can only be magnetized in the axis of their magnetic orientation. This is done by aligning the crystal structure of the material during the manufacturing process.Machining &Magnetization
Samarium Cobalt magnets offer strong resistance to demagnetization. All Samarium Cobalt magnets cannot be formed with conventional drilling, turning or milling processes, and must be ground before they are magnetized. Additionally, large or complex assemblies are usually magnetized prior to assembly. Standard tolerances for Samarium Cobalt magnets are +/-.005 for ground dimensions.
1:5 alloy material
1:5 offers 16 MGOe (energy product) to 22 MGOe and is made up of approximately 50% samarium and 50% cobalt. The 1:5 series has amaximum recommended operating temperature of 250°C. SmCo 1:5 magnets require lower field strengths than 2:17 materials to magnetize. In some instances, 1:5material may be magnetized with multiple poles, provided that amagnetizing fixture is available.
2:17 alloy material
2:17 offers 24 MGOe to 32 MGOe and is composed of about 25% samarium, 5% copper, 18% iron, 2% hafnium or zirconium, with the remainder being cobalt. The 2:17 series has amaximum operating temperature of 350°C. Special grades of 2:17 are available which can operate to even higher temperatures. SmCo 2:17 requires ahigher magnetizing field than alloy 1:5 does, and multiple pole magnetization is sometimes possible, provided that amagnetizing fixture is available.
Performance for samarium cobalt magnets:MaterialGradeRemannenceCoercive ForceInstrinsic CoerciveMax EnergyDensityTemp
CoefficientTemp
CoefficientCuire TempMax Working Temp.
(TW)(Br)(Hcj)(Hcb)(BHmax)(D)(Near Br)(Near Hcj)(TC)mTGsKA/mOeKA/nOeKJ/m3MGOeg/cm3%/K%/KºCºCSmCo 1:5
SmCo1884084006057600143218000143188.1-0.04-0.3750250(SmPr)CO5SmCo2089089006378000143218000159208.2-0.04-0.3750250SmCo2293093006378000143218000175228.2-0.04-0.3750250LTc(HM-10)59063049362001430183080108.2Temp Range%ºC7002501:520-100ºC-0.004(SmGd)CO5100-200ºC-0.021200-300ºC-0.042
SmCo2498098006768500143218000191248.3-0.03-0.2800280SmCo24H98098006768500198925000191248.3-0.03-0.2800280SmCo26L10301030039850004385500207268.3-0.03-0.2800300SmCo261030103007169000119415000207268.3-0.03-0.28003002:17 Sm2SmCo26M1030103007169000159220000207268.3-0.03-0.2800300(CoFeCUZr)17SmCo26H1030103007169000198925000207268.3-0.03-0.2800350SmCo281070107007569500119415000223288.3-0.03-0.2800350SmCo28M1070107007569500159220000223288.3-0.03-0.2800350SmCo301100110007729700119415000239308.3-0.03-0.2800350SmCo30M1100110007729700159220000239308.3-0.03-0.2800350LTc(HMG-22)98098007159000150020000230238.3Temp Range%ºC8403002:17-50-25ºC0.005(SmEr)2(CoTM)1720-100ºC0.012100-200ºC0.006200-300ºC-0.025Features include:
Samarium cobalt magnets are hard and brittle and may chip or break if dropped.
They have high magnetic properties
Samarium cobalt magnets offer good thermal stability
Samarium cobalt magnets are resistant to corrosion
Samarium cobalt magnets resistant to demagnetization