Request A Quote
Request A Quote

Maraging 300

Get to Know Maraging 300 Steel: The Next Generation of High-Strength Alloys

Maraging 300 steel is a high-performance, precipitation-hardening alloy
renowned for its exceptional strength, toughness, and fatigue resistance. The
term “maraging” comes from the French phrase martensite age-hardening,
referring to the unique process that gives this steel its superior mechanical
properties through heat treatment.

Key Properties of Maraging 300 Steel

  • Exceptional Strength: Achieves tensile strength up to
    2,000 MPa—nearly four times stronger than conventional carbon steels.
  • Fatigue Resistance: Withstands repeated stress cycles,
    making it ideal for high-performance applications.
  • Corrosion Resistance: Performs reliably in harsh
    environments while resisting wear and chemical degradation.
  • Weldability and Machinability: Low carbon content (≤0.03%)
    provides excellent processing characteristics.
  • Hydrogen Embrittlement Resistance: Suitable for advanced
    applications such as fuel cell technology.

Chemical Composition

Maraging 300 is primarily composed of iron, nickel, cobalt, and molybdenum.
This precise alloying blend enables its high strength and performance after
heat treatment while maintaining excellent workability.

Applications of Maraging 300 Steel

Due to its unmatched strength and durability, Maraging 300 is widely used in:

  • Aerospace components including landing gear and structural frames
  • Rocket motor casings and missile housings
  • Defense and military-grade equipment
  • High-performance sports gear requiring strength and lightweight design
  • Fuel cell components and advanced energy systems

At Mozaic Precision Metals, we supply Maraging 300 steel bar
stock engineered to meet the toughest industry requirements. Its superior
combination of strength, fatigue resistance, and machinability makes it a
next-generation alloy for critical applications.

Request a quote today to secure Maraging 300 steel for
your aerospace, defense, or advanced engineering projects.

The Reliable Maraging Steel Supplier

At Mozaic Precision Metals, we supply premium maraging steel
round bar stock engineered for exceptional strength, toughness, and reliability.
Known for its ultra-high strength and excellent machinability, maraging steel
is widely used in aerospace, tooling, defense, and high-performance
engineering applications.

With over 60 years of combined expertise in precision grinding and metal
supply, our leadership team ensures every maraging steel bar meets strict
quality standards. Whether you need Maraging 300 or other grades, we provide
consistent material that manufacturers and engineers trust for critical
applications.

Choosing the right supplier is vital in maintaining a dependable supply chain.
As a trusted source for maraging steel, Mozaic Precision Metals
delivers not only raw materials but also the confidence that your projects
will be supported with the highest-quality alloys available.

Request a custom quote today and partner with Mozaic
Precision Metals for reliable maraging steel supply tailored to your
requirements.

Applications of Maraging 300 Steel in Aerospace, Defense, and Other Industries

Maraging 300 steel is a high-strength, low-alloy steel engineered for
durability, toughness, and resistance to both corrosion and fatigue. Its unique
composition—including nickel, cobalt, molybdenum, titanium, aluminum, and
carbon—gives it exceptional mechanical properties, making it a trusted choice
for critical applications across aerospace, defense, medical, and industrial
sectors.

Aerospace Industry

With its excellent strength-to-weight ratio and fatigue resistance, Maraging
300 is widely used in aerospace components such as:

  • Rocket motor cases
  • Landing gear systems
  • Aircraft structural components

Defense Industry

The steel’s high toughness and reliability make it ideal for defense
applications, including:

  • Armored vehicle parts
  • Armor-piercing projectiles
  • Missile and weapon system components

Medical Industry

Thanks to its biocompatibility and high strength, Maraging 300 is also used
in:

  • Surgical instruments
  • Medical implants
  • Durable medical tools requiring high precision

Oil and Gas Industry

Resistant to corrosion and capable of withstanding extreme pressure, Maraging
300 is commonly used in:

  • Downhole drilling tools
  • Subsurface safety valves
  • Critical oilfield components

Sports Industry

The alloy’s strength and durability also make it valuable in performance
sports equipment, including:

  • Golf club heads
  • Tennis rackets
  • High-performance recreational gear

At Mozaic Precision Metals, we supply precision-ground
Maraging 300 round bar stock tailored to your project requirements. Whether
you’re in aerospace, defense, medical, or industrial manufacturing, this alloy
delivers unmatched reliability and performance.

Request a quote today to secure Maraging 300 steel for
your next critical application.