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Serving American Industry Since 1970MEEHANITE® Licensee
314-849-4080
Ductile Iron

Ductile Iron Castings

St. Louis Precision Cast Products pours ductile iron castings (ASTM A536) and MEEHANITE® ductile iron at our St. Louis, Missouri foundry. We make short runs from 1 to 500 pieces, plus prototypes, with castings up to 2,000 lbs supplied ready for machining.

ASTM A536MEEHANITE® Ductile Iron
Ductile iron bearing housing casting

At a glance

Run size1 to 500 pieces
Casting weightUp to 2,000 lbs
MoldingNo-bake / air-set sand
SimulationMAGMA, before the first pour
Heat treatmentStress relieving and annealing in house
DeliveredReady for machining, with traceability and certification
GradesASTM A536, MEEHANITE® Ductile Iron

When ductile iron is the right choice

In ductile iron the graphite forms round nodules instead of flakes. That gives it much higher tensile strength and the ability to stretch before it breaks, so it takes impact and bending loads that would crack gray iron. It can often replace fabrications and steel castings at a lower cost.

Short runs and prototypes

Many ductile iron jobs are small: a prototype to prove a design, a few replacement parts, or a limited production run. We are set up for exactly that, from a single piece to 500 per run, with pattern storage and maintenance so repeat orders are simple.

How we make them

No-bake, air-set sand molds, MAGMA simulation before the first pour, stress relieving and annealing in house, chemical analysis and mechanical property verification, and full traceability and certification.

What to send for a quote

  • A drawing or 3D model (PDF, DWG, DXF, STEP or IGES), or photos and measurements of the part
  • Material and grade, if you know it
  • Quantity per run, and roughly how many a year
  • Whether you need it as-cast or ready for machining, and any testing or certification

Request a quote or call 314-849-4080, Monday to Friday, 7:00 AM to 4:00 PM CST.

Frequently asked questions

What ductile iron specifications do you pour?

We pour ductile iron to ASTM A536, and MEEHANITE® ductile iron as a licensed MEEHANITE® foundry. Put the grade on your drawing or quote request.

Can you make a single ductile iron prototype?

Yes. Our runs start at one piece, and rapid prototyping is one of our core services.

How large can a ductile iron casting be?

We pour castings up to 2,000 lbs.

Ready to Start Your Project?

Contact us today for a quote on your casting needs. Our team is ready to help bring your designs to life.