High Saturation Iron Cobalt Alloy Rod 1J22 Hiperco 50 for Aerospace Components

Engineered for mission-critical aerospace electromechanical systems, DLX 1J22 / Hiperco 50 soft magnetic iron-cobalt alloy rods deliver industry-leading 2.4 Tesla saturation magnetic induction, ultra-high Curie temperature, and low coercivity. Manufactured through premium double-vacuum melting processes with micro-gap dimensional precision.

1J22 (equivalent to Hiperco 50 / Co50Fe2V) is a premier 50% cobalt-iron-vanadium soft magnetic alloy exhibiting the highest magnetic saturation flux density among all commercial magnetic materials. Designed specifically for high-efficiency electromagnetic actuators, high-torque aviation motor stators/rotors, and specialized magnetic shielding where weight reduction and maximum magnetic output are paramount.

• Peak Magnetic Flux Density: High saturation induction (Bs≥2.4 T) maximizing magnetic force per unit volume.
• Ultra-High Curie Point: Curie temperature exceeds 940°C, maintaining magnetic performance under high thermal stress.
• Clean Metallurgy: Double-melted via Vacuum Induction Melting (VIM) and Electroslag Remelting (ESR) for ultra-low interstitial gas content and exceptional metallurgical homogeneity.
• Custom Supply Condition: Available in hot-rolled, cold-drawn, centerless ground, and precision-annealed states with tight tolerance control.

All 1J22 bars undergo strict spectroscopic and gas-phase analysis to ensure low gas content ([O]≤15 ppm,[N]≤15 ppm,[H]≤2 ppm) and ultra-low carbon.

• Unmatched 2.4T Saturation for Electromagnetic Miniaturization Maximizes electromagnetic force generation, allowing aircraft electromechanical systems and solenoid valves to reduce footprint and weight while increasing operating torque and response speed.
• Exceptional Thermal-Magnetic Stability at Elevated Temperatures With a Curie point of ~945°C, 1J22 retains substantial magnetic saturation at operating temperatures above 400°C where standard silicon steels and permalloys degrade severely.
• Double-Vacuum Refining for High Core Homogeneity Produced via VIM + ESR refining furnaces, eliminating non-metallic inclusions and segregation, which provides uniform radial and axial magnetic responsiveness across entire bar lengths.
• Customizable Metallurgical Hardness and Machining States Supplied in unannealed or intermediate-annealed condition for CNC turning, milling, and wire EDM, followed by final protective hydrogen atmosphere magnetic annealing to fully unlock peak magnetic saturation.

• Aviation Electromechanical Actuators & Solenoid Cores High-flux magnetic pole pieces, linear actuators, and high-frequency solenoid valves where high force and minimal volume are safety-critical.
• Aerospace High-Torque Motor Stators and Rotors Stator/rotor laminations and solid core bars in ultra-compact starter-generators, servo motors, and drone motor systems operating under high magnetic flux levels.
• High-Flux Diaphragms, Relays, and Sensor Pole Pieces Aviation transducers, pressure sensors, magnetic bearings, and specialized flux concentrators requiring high sensitivity and rapid magnetic field response.
• High-Field Optical Deflection & Sputtering Magnet Cores Precision focusing poles and magnetic deflection systems in electron microscopes, synchrotron radiation equipment, and high-energy physics apparatus.

• Robust Production Scale & Dedicated Capacity Operating large-scale precision alloy melting and rolling facilities with an integrated monthly capacity of 1,200 tons/month, ensuring high-volume supply security and rapid production cycles.
• Complete Closed-Loop Manufacturing From vacuum induction melting (VIM), electroslag remelting (ESR), hot forging, precision drawing, centerless grinding to magnetic field heat treatment, all processes are internally controlled for complete traceability.
• Zero-Defect Metallurgical Quality Control Equipped with high-precision DC/AC magnetic permeameters, optical emission spectrometers (OES), carbon-sulfur analyzers, and 100% ultrasonic non-destructive testing for internal defect detection.
• Professional B2B Technical & Heat Treatment Support Our materials engineering team provides detailed magnetic annealing curve recommendations (pure dry hydrogen/vacuum annealing at 820°C–840°C with controlled cooling rates) to guarantee batch-to-batch magnetic compliance.

Q1: What delivery conditions are available for 1J22 / Hiperco 50 alloy rods?

A: We supply 1J22 rods in hot-rolled, cold-drawn, centerless ground, or pre-annealed states. For components requiring extensive CNC machining, we supply bars in the lightly cold-worked or mill-annealed state (HB 200−260) for optimal tool life. Final magnetic annealing should always be conducted after complete mechanical machining.

Q2: Why is final magnetic annealing critical for 1J22 Hiperco 50 parts?

A: 1J22 requires a specialized high-temperature annealing cycle (typically 820°C−840°C in dry hydrogen with a dew point below −45°C, or high vacuum) followed by a specific cooling rate through the ordering transformation zone (500°C−450°C). This relieves internal machining stresses, promotes optimal grain growth, and develops the peak 2.4T magnetic saturation and low coercivity.

Q3: How does 1J22 compare with 1J50 (50Ni-Fe) and Silicon Steel?

A: While 1J50 (Permalloy 50) offers higher initial permeability at low magnetic fields, its saturation induction peaks around 1.5−1.6 T. Standard silicon steels reach 1.8−2.0 T. 1J22 exceeds both with a maximum saturation of 2.4 T, enabling extreme miniaturization and high force density in space-constrained applications.

Q4: What is the minimum order quantity (MOQ) and packaging standard?

A: Our MOQ is flexibly structured according to standard bar diameters and custom production runs. All rods are coated with anti-corrosion oil, wrapped in moisture-proof barrier film, and secured in reinforced export wooden cases to ensure damage-free international transit.