OharePrecision Logo

Maraging Steel

Unleash the Power of Exceptional Mechanical Properties - Maraging Steel

Precision Engineering for Uncompromising Performance - Maraging Steel

Maraging Steel: Unlocking Limitless Possibilities with Unmatched Versatility

Featured Carbon SteelsMaraging steel is a specialized type of steel known for its exceptional strength and toughness. It is a group of iron-based alloys with a unique microstructure, mainly consisting of iron, nickel, cobalt, and small amounts of other elements such as molybdenum, titanium, and aluminum.

The steel derives its name from the term “maraging,” which refers to the aging process used to strengthen the material. Let’s explore the applications and machinability of this steel.



  • Aerospace and Defense: It finds extensive use in the aerospace and defense industries due to its outstanding strength-to-weight ratio and resistance to fatigue and stress corrosion cracking. It is used in the production of critical components such as rocket motor casings, aircraft landing gear, missile systems, and pressure vessels. The steel’s high strength and toughness make it ideal for applications that require reliability and durability in extreme conditions.
  • Tooling and Dies: It is highly valued in tool and die applications, particularly for molding, extrusion, and injection molding processes. Its excellent strength, hardness, and wear resistance make it suitable for manufacturing precision molds, dies, punches, and other tooling components. The steel’s ability to maintain its dimensional stability even under high-stress conditions contributes to its popularity in the tooling industry.
  • Automotive and Motorsports: It is utilized in high-performance automotive and motorsports applications where superior strength and weight reduction are critical. It is commonly used for producing engine components, suspension parts, drive shafts, and high-strength chassis structures. The steel’s ability to withstand high temperatures and resist deformation under extreme loads makes it a preferred choice in these demanding environments.
  • Industrial Equipment: It is employed in various industrial equipment and machinery applications, including gears, shafts, bearings, and structural components. Its high strength, toughness, and resistance to wear and corrosion ensure reliable performance and longevity in heavy-duty machinery and equipment.


Machining this steel can present some challenges due to its high strength and hardness. However, with the right tools, cutting parameters, and techniques, it can be successfully machined. Key considerations for machining include:

  1. Cutting Tools: Use high-speed steel (HSS) or carbide cutting tools specifically designed for hard materials. These tools should have sharp edges and be capable of withstanding high cutting forces.
  2. Cutting Parameters: Optimize cutting speed, feed rate, and depth of cut to ensure efficient material removal while minimizing tool wear. Adequate coolant or lubrication is essential to manage heat generated during the machining process.
  3. Heat Treatment: It is typically machined in a pre-aged or soft state to facilitate easier machining. After machining, it undergoes a post-machining aging process to achieve its desired mechanical properties.
  4. Machining Techniques: Employ rigid setups and stable machining conditions to minimize vibrations and ensure dimensional accuracy. Consider using advanced machining techniques such as high-speed machining or precision grinding for achieving fine surface finishes.

Maraging Steel 300: Unleashing Strength and Versatility

Maraging Steel 300, a subtype of maraging steel, is renowned for its exceptional strength and versatility. With its unique composition and heat treatment process, it offers outstanding mechanical properties and a wide range of applications. Let’s delve into the remarkable characteristics and applications of Maraging Steel 300.

It is a precipitation-hardening steel alloy primarily composed of iron, nickel, cobalt, and small amounts of other elements. It undergoes a specialized aging process to develop its superior strength, making it one of the strongest steels available. The aging treatment creates a unique martensitic microstructure, resulting in remarkable tensile strength, hardness, and impact resistance.

The versatility of Maraging Steel 300 makes it highly sought after in various industries. Its exceptional strength-to-weight ratio makes it a preferred choice for aerospace and defense applications, including aircraft components, rocket motor casings, and missile systems. Additionally, Maraging Steel 300 finds use in tooling and dies, where its high hardness and wear resistance ensure precise and durable performance. Furthermore, it is employed in automotive and motorsports applications, where its strength and weight reduction properties contribute to enhanced performance.

It stands as a testament to strength and versatility. With its exceptional mechanical properties and widespread applications, this steel alloy continues to empower industries that demand superior strength, durability, and performance.

Buy Premium Maraging Steel 300 from O’Hare Precision Metals

Buy Maraging Steel 300 from O’Hare Precision Metals, your trusted supplier of top-grade steel. With an extensive inventory and a commitment to quality, O’Hare Precision Metals ensures a seamless buying experience. Our comprehensive steel stock in various sizes and forms allows flexibility to meet your project requirements.

At O’Hare Precision Metals, quality is paramount. We adhere to strict standards and conduct rigorous testing and inspection procedures to ensure the integrity and reliability of their Maraging Steel 300. Our dedicated team provides exceptional customer service, assisting with inquiries and offering technical guidance throughout purchasing.

Choose O’Hare Precision Metals for competitive pricing without compromising on quality. Customization options allow you to specify dimensions and additional processing for your Maraging Steel 300—Trust O’Hare Precision Metals to deliver the premium steel you need for your projects. Contact us now!

4120has good tough strength propertiesused for forging applications as forged valve bodies and pumps
4125a chromium-molybdenum alloy steel, displays good strength and toughness propertiesautomotive and engineering gear, engine construction – steering knuckles, forged crankshafts, etc.
4130readily machineable, weldable and ductile, has tough strengthcommercial and military aircraft, machine tools, automotive, hydraulic tools, aerospace, auto racing
4135low-alloy steel, capable of being heat treated and has reasonable toughnessforged shafts, fixtures, collars, jigs, spindles
4140provides good hardness penetration, wear resistant, tough and ductilehighly stressed parts, or components subjected to severe wear
4142medium-carbon steel, readily heated and has tough strengthdie holders, forged gears, collets, spindles, arbors, flanges, axles, clutch parts, etc.
4145a chromium-molybdenum low alloy steel, readily forged, welded, and machineddrill collars, shafts, forged gears, rolls for paper mills, tool holders and pump shafts
4150low-alloy steel, has good atmospheric corrosion resistance and strengthforgings in the aerospace, gas, and oil industries, forged gears, shafts, and spindles
4340nickel-chromium molybdenum alloy, has high toughness and fatigue strengthcommercial and military aircraft, machine tool applications, automotive systems, forged steel crankshafts
52100high carbon, chromium alloy steelfor highly stressed parts like aircraft bearing
6150fine grained carbon-chromium alloy steel, highly abrasion resistantgear and engine construction, forged crankshafts, connecting rods, pump and gear shafts, spindles and steering knuckles
8620most widely used carburizing alloy, has high core strengthforged camshafts, gears, and fasteners
8740nickel-chromium low alloy steel, has tough strength propertieshigh-strength forged fasteners
9310low alloy steel, has good hardenability and fatigue strengthcrankshafts, heavy-duty gear shafts, gears in truck and aircraft construction

O’hare Precision Metals is a centerless ground bar and precision grinding services provider that prides itself on the quality of alloy steel round stock that we are a leading alloy steel round bar supplier that can provide you and other clients with. If you would like to know more about the kinds of services and the various precision ground bar stock that we can offer you then contact us now and send a quote for your required product.