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Hiperco® Prime and Hiperco® Prime Plus

Built to withstand speed.
Built to deliver efficiency.

Engineered to optimize torque density, efficiency, and mechanical performance in next-generation electric machines. 

The Hiperco® Prime product family is purpose-built for high-performance rotor and stator applications requiring superior magnetic induction, low core loss, and application-specific mechanical properties.

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What Is the Hiperco® Prime Product Family? 

Hiperco® Prime and Hiperco® Prime Plus alloys are advanced iron-cobalt soft magnetic materials developed to meet the evolving performance demands of electrification across aerospace, defense, medical, and industrial markets.

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Within the Prime platform, each grade is engineered with a distinct design objective:

  • Hiperco® Prime — optimized for high mechanical strength in rotor applications
  • Hiperco® Prime Plus — optimized for low core loss in stator assemblies

Together, they provide engineers with material solutions tailored to the most critical performance drivers of modern electric machines.

Hiperco® Prime Family Products

Hiperco® Prime
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Hiperco® Prime

High-Strength Soft Magnetic Stacks for Rotor Applications 

Engineered to deliver exceptional magnetic induction and core loss with enhanced mechanical integrity, Hiperco® Prime is optimized for high-speed rotor environments where structural durability and power density are critical. Designed for demanding aerospace and advanced electrification systems, Prime supports reliable performance under high rotational stress.

Additional Content

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Hiperco® Prime Plus
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Hiperco® Prime Plus

Low Core Loss Soft Magnetic Stacks for Stator Efficiency

Hiperco® Prime Plus is engineered to reduce core loss and improve efficiency in stator assemblies. By lowering energy losses and supporting improved thermal performance, Hiperco® Prime Plus enables higher system efficiency and optimized performance in high-frequency powertrain systems and high-speed motors.

Additional Content

Related Blog

Why the Hiperco® Prime Product Family Platform?
The Hiperco® Prime family was developed to support increasing demands for torque density, efficiency, and compact system design.

Increase Torque

Up to 25% Higher Magnetic Induction

Supporting stronger magnetic fields for increased torque density and power output compared with standard electrical steel. 

Improve efficiency

~30% Lower Core Losses

Improved thermal performance and motor efficiency in high-frequency and high-speed applications. 

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Increased Torque Density

Torque improvements of up to ~25%, enabling higher acceleration or system performance within the same envelope.

Thermal Management

Better Thermal Performance

Motors using high-performance soft magnetic alloys typically run 10–20 °C cooler than those using conventional materials, improving thermal management and continuous power. 

Proven Across Critical Electrification Markets

Hiperco® Prime products are trusted in performance-driven applications where reliability and efficiency are non-negotiable.

With decades of experience in soft magnetic materials, Carpenter supports programs where performance margins are narrow and material reliability is essential.

Aerospace
AEROSPACE
Defense
DEFENSE
Medical
MEDICAL
APPLICATION DEVELOPMENT
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Related Resource

Read Our Related Blog: High-Strength Hiperco® with Low Core Loss: Meeting the Demands of High-Speed Motor Design
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A Trusted Partner in Application Engineering

Application Engineering Support

We collaborate on motor design, stack production, and performance optimization.

Value Added Capabilities

Custom Property Development

Mechanical and magnetic characteristics can be tuned to meet specific application demands.

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Scalable Production

With production capacity exceeding 100K tons/year, we support both prototype development and high-volume programs.

Explore Testing Services

Integrated Expertise

From alloy development to lamination performance, we bring deep metallurgical and electrification knowledge to every engagement.
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Optimize Your Rotor or Stator Performance

Whether your design priority is structural integrity at high rotational speeds or improved efficiency through reduced core loss, the Hiperco® Prime™ platform delivers material solutions engineered for performance.
Speak with an Applications Engineer
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