Meehanite Castings

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Willman Industries is proud to be a Meehanite Foundry and a leading supplier of Meehanite castings.  We have been pouring Meehanite castings for decades and can assure you that you will always get the quality you need with any Meehanite castings you order.

Meehanite is a registered trade name of a family of cast ferrous materials manufactured under specific metallurgical control so that their properties meet established engineering specifications. Meehanite castings offer advantages to your castings like uniform soundness, consistent physical properties and dependable performance in service with long wear life and great durability.  (On a side note, if you have a Meehanite casting and you were wondering if there was a suitable alternative, you can read our Meehanite Equivalent Castings page).

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With Meehanite you know you will always get these three things:

  • A controlled process for casting metals to exact and well-defined engineering specifications that will be uniform between production runs.
  • Superior engineering cast irons including nodular graphite irons, flake graphite irons and white cast irons.
  • A Certified world class quality and service because we are continually audited by Meehanite to remain a certified foundry.

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Meehanite originated in 1927 as a way to modify graphite structures and control the properties of cast iron in relation to casting section. Meehanite metallurgists found that by adding alkaline earth silicides to a low carbon iron in the ladle that carbides could be reduced and the iron could be made very machinable and with uniform strength properties.  Meehanite has continued to evolve over the decades to improve its castings ensuring you will get a quality casting every time.

The Meehanite® Process

The Meehanite® process involves a number of patented features that work to control and produce the specific graphite distribution and the desired matrix structure within the casting.  The Meehanite® process requires careful selection of raw materials, detailed process controls in place, and a thorough knowledge of every facet about castings.

The Meehanite® process dictates standard procedures in all phases of casting manufacture that are adhered to, including gating and risering techniques, sand control, testing methods, and Meehanite® molding procedures. Meehanite® eliminates the guesswork, creating a product of high quality and reliability.  Additionally, we are audited by Meehanite® regularly to validate we meet their high standards allowing us to maintain our Meehanite® license.

Comparison Properties of Meehanite®

A structural comparison of Meehanite metal engineered castings with medium carbon cast steel, cast iron, and other engineered casting types shows many similarities since they exhibit a matrix free ferrite with areas of pearlite.  Additionally, they contain a considerable quantity of coarse flake graphite.

When Meehanite® is compared with carbon spring steel you will find both materials have high strength, excellent wear resistance, and contain a fully pearlitic structure.  However, the Meehanite metal also contains distributed flake graphite which provides machining qualities in addition to casting soundness, high dampening capacity for vibrations, and greatly reduced notch sensitivity.  The reduction of endurance limit of Meehanite® type GA by a groove or notch amounts to only about 20% as compared with 50% reduction for steel under the same conditions.

Why Meehanite® Instead of Regular Iron Castings?

Meehanite® is a high-performance iron casting.  When you need less material (to save weight or bulk) or you need a really strong casting that you can machine and expect it to remain strong, Meehanite® is a great choice.  Products with gears and keyways are especially well suited to Meehanite® as well as valves and pumps.

If you would like more technical details about Meehanite® castings, feel free to print out a copy of this Meehanite® Selection Guide.

Of course, you don’t have to be an expert in all the types of castings you can choose from.  We have several cutting-edge casting processes and techniques (like solution-strengthened ductile iron castings) that will allow us to achieve the form, fit, and function of your product at the most economical cost possible.  Please give us a call to find out what casting process is ideal for your needs.

Give us a call about your Meehanite castings and we can show you how you can find more value with Willman Industries.

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