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Maraging Steel

Maraging Steel

 

This type of low-carbon high nickel steel undergoes extended heat treatment cycles to help produce a strong product which offers ductility coupled with high tensile strength. Specific alloys, including titanium, contribute to this result. Ask us to assist your enterprise in obtaining available grades of Maraging Steel!

 

Ultra High Strength Steel: a Fascinating Product

For a variety of reasons, metal parts manufacturers around the world seek ultra high strength steel (or “UHSS steel”) components. It proves challenging to develop strong steel which also offers high ductility and high malleability. Yet a family of steels known as Maraging Steel reportedly offers these advantages. During the Cold War, companies in the United States worked hard to help pioneer this material.

 

About Maraging Steel

Today the family of Maraging steels interests manufacturers from Iran to China. Copious online information about these steels suggests they offer high strength and high tensile strength and include no (or very low) carbon content but high percentages of nickel, cobalt, molybdenum, titanium and other alloys. They reportedly contain up to 15% to 25% nickel by weight, depending upon the specific type of Maraging steel.

Specific Maraging steel alloy composition depends upon the intended uses for the metal by individual manufacturers. Nickel assists commercial manufacturers in creating Maraging steels of value in the industrial and consumer marketplace (18% nickel Maraging steel products have obtained commercial popularity). The alloys in this product, especially nickel, contribute to the precipitation of desired “intermetallic” compounds as molten metal solidifies.

 

The Properties of Maraging Steel

Maraging steels typically offer a high melting point, allowing them to maintain solid states in hot environments which melt other types of steel. As in the case of every metal alloy, low carbon metal alloys utilized in different formulations of these products contribute significantly to the physical properties of the resulting steels. Metal producers enjoy wide latitude to create Maraging steels for a variety of different purposes.

This family of metals usually demonstrates high ductility and both high strength and high tensile strength. These physical properties enable Maraging steels to serve in sheet metals and wires. Manufacturers also rely upon a lengthy “aging” process to help generate strength and hardness in parts produced using these steels.

 

The Maraging Steel Heat Treatment Cycle

The interior grain structure of Maraging steels undergoes important changes during an extensive “aging” process which typically involves several cold rolling and heat treatment cycles. These specific steps involved will, of course, depend upon the desired uses for the steel. Manufacturers reportedly employ cold rolling and heat treatments to change and successively refine the interior grain structure of the steel, causing it to become more uniform, stronger and harder.

 

Popular Grades of Maraging Steel

Currently, metallurgists grade maraging steels according to their variable alloy compositions and properties. These products usually contain different percentages of nickel, titanium, molybdenum, and cobalt, along with other alloys.

Manufacturers typically list these steels with the term “Maraging” in the name, followed by a numerical designation to denote the alloy percentage compositions.

Manufacturers of commercial grades of this family of metals employ a designation system ranging from 200 to 350 based upon the alloy compositions and nominal tensile strength. It purportedly relies upon complex military specifications to help clarify gradiations for the public. Some widely available types of maraging steels today include these grades:

  • Maraging Steel 200 – Commercially available in either annealed or aged forms, this grade reportedly contains lower percentages of molybdenum than other types of popular Maraging steels.
  • Maraging Steel 250 – This steel, both hard and strong, also offers workability. It withstands high-temperature environments well, making it suitable for use in some airplane engines.
  • Maraging Steel 300 – Reportedly, parts manufactured from this grade of tough Maraging steel won’t readily crack. Race car engine parts and tool manufacturers may appreciate this strong metal!
  • Maraging Steel 350 – A grade of Maraging steel described as popular for use in defense contractor applications. Surprisingly, commercial sources nevertheless offer this Maraging steel online for public use. This grade contains higher percentages of titanium and cobalt than many others widely used Maraging steels.

 

Common Applications For Maraging Steel

Maraging steels hold importance in some industries due to their strength, high melting points, and other physical properties.

Defense contractors utilize certain types of proprietary Maraging Steels. These metals reportedly have obtained applications within civilian economic sectors since the early 1960s, including within the aerospace, transportation, industrial tooling, consumer goods, biomedical, and electronics industries, also.

Their high melting points and ductility allow these steels to play an important role in some types of die casting and tool forming, for instance.

In addition to their military applications, popular uses for this family of strong steels today include use in some types of gears and other engine parts. They also form golf club constituents. Maraging steels have found a place in the construction of bicycles and other sports equipment. They likely also make excellent chain link fence materials in some venues. Additionally, both biomedical manufacturers and jewelers appreciate these strong, ductile, malleable steels in certain situations, e.g. for use in customized mandrels.

Nickel causes adverse skin reactions in some people so its presence in high percentages may make some maraging steels unsuitable for some medical and adornment purposes, however.

 

Advantages Provided by Maraging Steel

Maraging steels offer numerous advantages:

  1. This ultra high strength steel supplies both strength and high tensile strength. These properties contribute to fatigue resistance.
  2. The ability to shape a hard steel readily offers great utility. Manufacturers shape and form maraging steels into a variety of useful parts and tools, such as gears and mandrels. This metal also accepts welds. This benefit contributes to this metal’s manufacturing importance.
  3. The “aging” process for this steel sometimes occurs in comparatively low-tech environments. This technology potentially proves widely accessible and cost-effective.

Contact Bunty LLC Today

For further information about our maraging steel, contact us via the convenient website form or submit a request for quote directly. We welcome your inquiries.

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From a contract manufacturing firm, BuntyLLC evolved into a full service custom machined, forged and cast metal parts fabrication enterprise. We supply global solutions from our headquarters in Greenville, South Carolina.

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