Cast Iron Castings

Gray Iron castings are a type of cast iron known for their high carbon content and graphite flakes, which give them excellent castability, wear resistance, and machinability. They are commonly used in engine blocks, pipes, and machinery parts.


CPM Industries has over 60 years of experience in producing Gray Iron Castings. With our in-house Pattern and Machine Shop, we handle your project from start to finish, eliminating the need to coordinate between foundries and machine shops. We can produce castings up to 2500 lbs and handle orders from prototypes to annual runs of up to 2500 units


Cast Iron Capabilities

  • Quantities; Prototypes, Low and High Volume (1-2,500 pieces per year)
  • Capable of pouring weights up to 2500 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

Common Cast Iron Alloys

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

Other Casting Materials CPM Industries Offers

Aluminum

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Cast Iron

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Ductile Iron

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Magnesium

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