Prototype Cast Iron Castings

CPM Industries has developed specialized casting techniques to produce Prototype Cast Iron Castings (Gray Iron), meeting the unique needs of our customers. We manage your project comprehensively, from initial concept to finished castings. Our in-house pattern shop operates with flexible scheduling and offers multiple tooling options to minimize initial costs. With our machine shop and network of foundry partners, CPM Industries provides a seamless "one-stop source" for your entire project. Let CPM assist you with your Prototype Cast Iron Casting project.


Providing Turnkey Solutions For Metal Castings Since 1960

Prototype Capabilities

  • In-House Pattern Shop;
  • CNC Machined Patterns
  • Printed Sand Molds and Cores
  • Capable of pouring weights up to 250 lbs.
  • Turnkey; Tooling, Castings and Machining
  • Pre-Production Testing;
  • PPAP
  • FAIR
  • X-Ray
  • Many Others
  • Tooling options to meet the quantity and complexity of your part
  • CNC Machined Patterns
  • Printed Sand Molds and Cores
  • Machine Shop;
  • Milling
  • Turning
  • 5 axis Machining
  • Many Casting Technologies to Choose From
  • Machine Shop; All of Our Prototype Castings are Made With Machining In Mind
  • Rapid Turnaround is Always Available
  • No Project is Too Small

Common Cast Iron Alloys For Prototyping

ASTM Specs A48-83 SAE Specs J431 Minimum Tensile (psi) BHN Hardness
Class 25 G2500 25,000 170-229
Class 30 G3000 30,000 187-241
Class 35 G3500 35,000 207-255
Class 40 G4000 40,000 217-269