Пластина Hiperco 50
Hiperco 50 plate is a high-performance iron-cobalt-vanadium soft magnetic alloy supplied in flat, sheet, or plate form, known for exhibiting the highest magnetic saturation levels and a high Curie point.It is used to build ultra-efficient,lightweight,and high-performance magnetic cores for advanced electrical systems.
Key Performance Properties
- Extreme Magnetic Saturation:
It achieves an industry-leading magnetic induction of 2.4 Tesla (24 kilogauss).This allows engineers to push massive magnetic flux through a very narrow cross-sectional area. - Exceptional Thermal Stability:
It boasts a highly elevated Curie point (~940°C),ensuring it remains reliably magnetic at severe operating temperatures where standard silicon steels completely fail. - High Magnetostriction:
Possesses a large magnetostrictive expansion coefficient,allowing it to efficiently convert magnetic energy into mechanical movement. - Low AC & DC Losses:
Engineered to exhibit remarkably high maximum permeability and minimal core loss during operation.
Applications of Hiperco 50 Plate
- Aircraft Generators
- APU Cores
- Flight Actuators
- UAV Motors
- Missile Servos
- Motorsport MGUs
- Hypercar Traction
- Suspension Actuators
- MRI Shielding
- Transformer Cores
- Aerospace Instruments
- Security Tags
- MRI Coils
- Ultrasonic Transducers
- Sonar Projectors
- Acoustic Diaphragms
We offer Hiperco 50 plates and sheets in thicknesses of 10 – 50.We offer not only листы нержавеющей стали and sheets but also plates made of Hastelloy,Incoloy,Inconel,Monel,and other alloys.Our products comply with ASTM A240,EN 10204,ISO 9001,PED 2014/68/EU ,CE,and other standards.With over a decade of experience in manufacturing and import/export,we are your best wholesaler in China.
Chemical Composition of Hiperco 50 Plate
The chemical composition of Hiperco 50 plate (equivalent to the Chinese grade 1J22 and ASTM A801 Type 1) is precisely engineered to balance extreme magnetic capability with mechanical processability.
| Co | V | Fe | Mn | Si | Ni | Cr | C | п | S |
|---|---|---|---|---|---|---|---|---|---|
| 48.0 – 52.0 | 1.80 – 2.20 | Остаток средств | ≤ 0.30 | ≤ 0.30 | ≤ 0.25 | ≤ 0.10 | ≤ 0.04 | ≤ 0.02 | ≤ 0,015 |
The Slater-Pauling Peak
The roughly 50:50 ratio of Iron to Cobalt represents the absolute peak of the Slater-Pauling curve.At this specific atomic concentration,the alignment of electron spins yields the highest intrinsic magnetic saturation of any commercially available metal,achieving an unmatched 2.4 Tesla.
The 2% Vanadium Miracle
An alloy with a composition of 50% Fe and 50% Co undergoes an atomic ordering transformation during cooling,causing it to become glass-like and brittle,and thus unsuitable for cold rolling into thin sheets.The addition of 2% vanadium delays this ordering reaction during rapid cooling;provides the alloy with sufficient ductility to allow for cold rolling,stamping,and machining;and increases electrical resistivity,thereby reducing eddy current losses.
High-Strength Variant: Hiperco 50 HS
For high-speed motor rotors subjected to extreme centrifugal forces,standard Hiperco 50 plates can deform.Manufacturers create Hiperco 50 HS by adding 0.15% to 0.30% Niobium.This micro-alloying pins grain boundaries during heat treatment,doubling the material’s yield strength while preserving its excellent magnetic profile.
Critical Need for Post-Machining Decarburization
Even the trace amounts of Carbon left in the matrix can severely restrict magnetic domain wall movement.Consequently,after machining or stamping the plate,components must undergo final annealing in a wet hydrogen atmosphere.This process strips out remaining carbon interstitials,lowering coercive force and maximizing permeability.
Hiperco 50 Plate Standards & Equivalent Designations
| Hiperco 50 / 1J22 (High-Saturation Iron-Cobalt Soft Magnetic Alloy) | |||||
|---|---|---|---|---|---|
| Стандарт / Система | Эквивалентное обозначение | Форма продукта | GB / GB/T (China) | GJB (Military) | GOST (Russia) |
| Китайский стандарт | 1J22 | Plates, Sheets & Strips | GB/T 14986.3 | GJB 6479 | GOST 10160 |
| Russian / CIS Standard | 50KF / 50KFH (50КФ / 50КФХ) | Bars & Rods | GB/T 15018 | – | GOST 10994 |
| ISO Chemical Name | FeCo50V2 / Co50FeV2 | Seamless Pipes & Tubes | – | – | – |
| UNS System | UNS R30005 | Welded Pipes & Tubes | – | – | – |
| Aviation / Aerospace | Hiperco 50 HS Vacoflux 50 | Forgings & Rings | – | – | – |
| European / ASTM Designation | ASTM A801 Type 1 MIL-A-47182 | ||||
| Generic Trade Name | Permendur 2V, Hiperco 50A | ||||
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Mechanical Properties of Hiperco 50 Plate
The mechanical properties of Hiperco 50 plates vary drastically depending on their heat treatment state.Before annealing,the material possesses higher strength but is brittle.After the final magnetic annealing,the mechanical strength drops as the grains grow,and the material becomes highly ductile yet physically brittle at room temperature due to atomic ordering.
| Механические свойства | As-Rolled / Cold-Worked State | Post-Magnetic Annealed State |
|---|---|---|
| Предел прочности | 700 – 900 MPa | 350 – 450 MPa |
| Предел текучести | 600 – 750 MPa | 200 – 300 MPa |
| Удлинение | 1% – 3% | 5% – 10% |
| Твердость | ~300 HV / 95 HRB | ~180 HV / 85 HRB |
| Модуль упругости | – | 180 – 210 GPa |
The Dilemma of Room-Temperature Brittleness
The 50% Iron – 50% Cobalt chemical matrix undergoes a B2-type atomic ordering transition when cooling below 730°C.
This atomic ordered structure causes severe room-temperature brittleness.
Even though the elongation percentage improves slightly after annealing,the material is highly susceptible to micro-cracking during fast impact or high-stress handling.
Stamping and Machining Window
Because of this brittleness,all heavy mechanical operations—such as stamping laminations,EDM wire cutting,milling,and drilling-must be fully completed while the plate is in its un-annealed,cold-worked state.
Attempting to machine or heavily deform a Hiperco 50 plate after its final hydrogen anneal will crack or shatter the component.
Hiperco 50 vs. Hiperco 50 HS
For high-speed electric motor rotors spinning at tens of thousands of RPM,the centrifugal forces exceed the yield strength (~250 MPa) of annealed standard Hiperco 50,causing the rotor laminations to deform.
To solve this,Hiperco 50 HS introduces 0.15%–0.30% Niobium.This addition forms intermetallic precipitates that limit grain growth.Hiperco 50 HS achieves a post-annealed yield strength of ~450–500 MPa,doubling its structural capacity while retaining peak 2.4T magnetic saturation.
Magnetic vs. Mechanical Properties
Higher Annealing Temperatures (850°C–900°C):
Promotes massive crystal grain growth.This optimizes soft magnetic performance (maximum permeability,lowest core loss) but degrades the yield and tensile strength.
Lower Annealing Temperatures (750°C–800°C):
Keeps grains smaller.This preserves higher mechanical yield strength but yields inferior magnetic permeability and higher core losses.
Our Advantages in Manufacturing Hiperco 50 Plate
Ultra-Pure Vacuum Melting
- VIM + VAR Processing:
We utilize Vacuum Induction Melting combined with Vacuum Arc Remelting to eliminate harmful gases and inclusions. - Tight Chemical Windows:
Our process locks Cobalt and Vanadium into their optimal ranges for maximum magnetic saturation. - Low Carbon Control:
Interstitial elements are strictly limited at the raw stage to ensure excellent initial domain wall mobility.
Precision Rolling Tolerance
- Multi-Roll Cold Mills:
Our advanced mills achieve exceptionally tight plate thickness tolerances down to ±0.005 mm. - High Stacking Factor:
Superior flatness and surface quality minimize wedge variations across the plate width for motor cores. - Optimized Grain Texturing:
Customized hot and cold reduction ratios make the plate highly responsive to final annealing.
Advanced Atmosphere Annealing
- Pure Hydrogen Control:
We operate industrial vacuum furnaces featuring high-purity wet and dry hydrogen atmospheres. - Regulated Cooling Rates:
Automated thermal systems control the cooling rate through the critical atomic ordering zone. - Deep Decarburization Cycles:
Specialized heat treatment strips away trace surface carbon to lower the final coercive force.
Comprehensive Quality Testing
- Verified B-H Loops:
Every batch is tested using closed-loop permeameters to document exact core losses and permeability. - Flaw Detection Systems:
Ultrasonic and eddy current testing guarantee plates are completely free from internal micro-cracks. - Full Certification Traceability:
All shipments include comprehensive Mill Test Certificates detailing chemical and magnetic metrics.
FAQs About Hiperco 50 Plate
Нет.Due to its high iron content ,Hiperco 50 is highly susceptible to rust and atmospheric corrosion,especially after hydrogen annealing.Finished parts must be protected immediately using rust-preventative oils,vacuum packaging,or specialized coatings like epoxy bonding or passivation if used in humid environments.
Standard Hiperco 50 has a relatively low yield strength (~210–250 MPa) after annealing,which can cause rotor laminations to deform under high rotational speeds.For these applications,you should use Hiperco 50 HS,which contains Niobium to double the yield strength (~450–500 MPa) without losing magnetic saturation.
If the hydrogen contains moisture or oxygen (high dew point),the vanadium and iron will oxidize,forming an internal green/dark oxide scale.This oxidation destroys the soft magnetic properties,drastically increases coercive force,and lowers maximum permeability.A dew point of -60°C or lower is strictly required.
In its raw,as-machined state,the material has very poor magnetic properties due to internal stresses and crystal lattice distortions.Final heat treatment at high temperatures (~850°C to 900°C) triggers recrystallization and grain growth,which dramatically increases magnetic permeability and drops core losses.The hydrogen atmosphere also removes trace carbon from the alloy.
No.You must do all heavy machining,stamping,drilling,and EDM wire cutting before final annealing.After magnetic annealing,the material undergoes an atomic ordering transformation that makes it extremely brittle at room temperature.Attempting to machine it afterward will cause the plate to crack,delaminate,or shatter.
In its un-annealed (as-rolled or cold-worked) state,the material behaves similarly to a tough stainless steel.The most effective methods include:
- Wire EDM (Electrical Discharge Machining):
Best for intricate shapes and motor lamination prototypes. - Precision Stamping:
Used for high-volume production of thin lamination stacks. - Laser Cutting:
Effective for fast prototyping,though care must be taken regarding the heat-affected zone (HAZ).
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