SIC Code 3321-04 - Foundries-Ductile Iron (Manufacturing)

Marketing Level - SIC 6-Digit

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SIC Code 3321-04 Description (6-Digit)

Foundries-Ductile Iron (Manufacturing) is an industry that specializes in the production of ductile iron castings. Ductile iron is a type of cast iron that is known for its high strength, durability, and ductility. The manufacturing process involves melting iron and adding small amounts of other materials to create the desired properties. The molten metal is then poured into molds and allowed to cool and solidify. The resulting castings can be used in a wide range of applications, including automotive parts, pipes, valves, and machinery components.

Hierarchy Navigation for SIC 6-Digit Code 3321-04

Parent Code (less specific)


  • Induction furnaces
  • Ladles
  • Molds
  • Core machines
  • Sand mixers
  • Shot blasting machines
  • Grinding machines
  • Spectrometers
  • Xray machines
  • Ultrasonic testing equipment

Industry Examples of Foundries-Ductile Iron (Manufacturing)

  • Automotive parts
  • Pipe fittings
  • Valves
  • Machinery components
  • Manhole covers
  • Pump housings
  • Gearboxes
  • Agricultural equipment parts
  • Railroad components
  • Construction equipment parts

SIC Code 3321-04 - Foundries-Ductile Iron (Manufacturing)

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