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Explore Aerospace Gear Materials

Carpenter Technology delivers high-performance alloys engineered for aerospace gears that require exceptional strength, wear resistance, and long-term reliability. Our materials help manufacturers produce precision gear systems that perform consistently under high stress, supporting safe and efficient flight operations.
Of structural innovation
Built for stress, contact fatigue, and wear
From melt to finished component
The right materials help aerospace gears achieve greater durability, precision, and efficiency across commercial, defense, and next-generation flight systems.
Enable gears to handle higher torque and mechanical stress without failure.
Improve resistance to fatigue, wear, and surface degradation.
Maintain dimensional accuracy under repeated load cycles.
Reduce friction and energy loss in critical gear systems.
Download the Gear Alloy Snapshot

Maintains integrity under the high thermal demands of gear operation.
Withstands continuous, high-cycle mechanical loading typical of gear trains and rotating parts.
Prevents permanent deformation under sustained heat and stress.
Protects against chemical degradation in harsh service environments.
Guarantees reliable and consistent performance across extended operational lifecycles.
Meet the material qualities required for aerospace gearing and structural elements.
Continuous development to support next-generation avionics systems.
Tightly controlled processes for predictable performance.
Direct access to metallurgists for real-world application support.
Customers require materials that can reliably withstand stresses induced under severe conditions. We offer a range of materials key to landing gear applications.
Modified 4340 steel for higher tempering temperatures possessing high hardenability and strength with good ductility and toughness in heavy sections
High hardness and strength combined with exceptional ductility, high fracture toughness, and exceptional stress corrosion cracking resistance in extreme temperatures
Ultra-high-strength steel with high toughness and resistance to stress corrosion cracking
High-strength stainless steel with superior corrosion resistance and strength to withstand high torques in harsh environments for extended periods of time
Ultra-high-strength steel with good toughness and temperature resistance with the added benefit of atmospheric corrosion resistance
Controlling the movement of an aircraft is essential to operation, and the strength of actuators is critical to performance. We offer the strongest materials to enable smaller, lightweight designs.
Chromium-nickel-molybdenum carburizing steel with high hardenability, high core hardness, and superior fatigue strength
A modified 4340 steel for higher tempering temperatures possessing high hardenability and strength with good ductility and toughness in heavy sections
Forgeable Martensitic precipitation-hardening stainless steel offering high strength and hardness, excellent corrosion resistance, superior transverse toughness and ductility
Best-in-class high-strength stainless steel with superior corrosion resistance and high strength used to maximize weight savings
Connects to the wing and transmits the thrust forces generated in extreme environments.
Nickel-base alloy that offers exceptionally high yield, tensile and creep-rupture properties in a weldable material with corrosion resistance
To ensure power density and reliability gears require good structural fatigue and contact fatigue strength. We offer stronger materials that withstand higher temperatures for any operating condition.
Carburizing steel with high hardenability, good core strength, and superior fatigue resistance, also available in double vacuum melt version
Premium melt carburizable stainless alloy with a hard corrosion resistant case and good ductile core toughness
Premium quality alloy carburizing steel with a combination of high-temperature performance and fatigue resistance
Partner with us for next-generation components created in our production facilities with powder lifecycle management and risk mitigation. Our end-to-end expertise in additive manufacturing enables us to consult at any stage in the process, adding value to your current additive manufacturing processes.
A fully heat treatable workhorse alloy performing at temperatures up to 650F° (350°C) offering strength with light weight and corrosion resistance
Ti64 Grade 23+ combines controlled powder chemistry with lower oxygen content and optimized print parameters to provide 15-20% improvement in mechanical properties
Martensitic precipitation, age-hardenable stainless alloy offering high strength and hardness with excellent corrosion resistance
"Understand the key material requirements—strength, cleanliness, fatigue resistance, and process control—needed for reliable performance in aerospace gear systems."
READ NOW"Explore how titanium alloys deliver high strength-to-weight ratios and corrosion resistance, supporting lighter, more efficient aerospace components."
READ NOW Explore All InsightsAccess engineering resources that help aerospace manufacturers optimize component design and production for high-performance flight.
What are the most critical material properties for aerospace gear applications?
How does material cleanliness affect aerospace gear performance?
What is contact fatigue, and why is it important in aerospace gears?
How do you balance hardness and toughness in aerospace gear materials?
How does material selection impact the lifespan of aerospace gears?