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Establishments primarily engaged in manufacturing gray and ductile iron castings, including cast iron pressure and soil pipes and fittings.


SIC Code 3321 - Gray and Ductile Iron Foundries is a final level code of the “Manufacturing” Division. There are 125 companies classified in this industry in the USA with an estimated employment of 6,665 people.

Hierarchy Navigation for SIC Code 3321

Parent Category (less specific)

Industry Examples

Common types of examples within SIC Code 3321 - Gray and Ductile Iron Foundries are:

  • Brake shoes, railroad: cast iron
  • Car wheels, railroad: chilled cast iron
  • Castings, compacted graphite iron
  • Castings, gray iron and semisteel
  • Cooking utensils, cast iron
  • Couplings, pipe: pressure and soil pipecast iron
  • Ductile iron castings
  • Elbows, pipe: pressure and soil pipecast iron
  • Fittings, soil and pressure pipe: cast iron
  • Foundries, gray iron and semisteel
  • Gas pipe, cast iron
  • Gray iron foundries
  • Ingot molds and stools
  • Manhole covers, metal
  • Nipples, pipe: pressure and soil pipe-cast iron
  • Nodular iron castings
  • Pipe and fittings, soil and pressure: cast iron
  • Railroad car wheels, chilled cast iron
  • Rolling mill rolls, iron: not machined
  • Sash balances, cast iron
  • Sewer pipe, cast iron
  • Water pipe, cast iron

Industry Image

Example photo for industry SIC 3321 - Gray and Ductile Iron Foundries. This image represents an activity or product found in this industry.

Companies compiles comprehensive business data and executive contact leads for businesses within SIC Code 3321 - Gray and Ductile Iron Foundries. Some of the leading and most notable companies are listed below. To order a list of companies within SIC Code 3321 - Gray and Ductile Iron Foundries for marketing (postal mailing, telemarketing, emailing) or analytics-use, click on the link below to “Buy Business List”. Our data analysts are standing by to assist in your list setup and target marketing.

Industry Executives

Would you like to email executives in SIC Code 3321 - Gray and Ductile Iron Foundries? Below are some of the common job titles available to be targeted.

  • Business Development
  • Chairman
  • C-Level
  • Director
  • Engineering
  • Executive Director
  • Facilities
  • Finance
  • Human Resource
  • IT
  • Manager
  • Marketing
  • Manufacturing
  • Operations
  • Owner
  • Partner
  • President
  • Principal
  • Purchasing
  • Sales
  • Vice President

For specific job title targeting, please provide details in the business list request form.

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Extended SIC Code Categories for SIC 3321

For business marketing and targeting, SIC Codes have been extended to provide more specific classifications within SIC Code 3321 – Gray and Ductile Iron Foundries. Extended SIC Codes are being continuously updated to reflect the current business environment.

6-digit SIC

  • 332101Foundries-Iron (manufacturers)
  • 332102Foundries-Gray Iron (manufacturers)
  • 332103Manhole Covers (manufacturers)
  • 332104Foundries-Ductile Iron (manufacturers)
  • 332105Sash Balances & Weights (manufacturers)
  • 332106Castings-Iron (manufacturers)
  • 332107Foundries-Nickel & Alloys (manufacturers)
  • 332108Sewer Pipe-Retail (manufacturers)
  • 332198Gray & Ductile Iron Foundries (manufacturers)

7-digit SIC

  • 3321001Gray & Ductile Iron Foundries (manufacturers)
  • 3321002Castings-Iron (manufacturers)
  • 3321003Ductile Iron Castings
  • 3321004Foundries-Iron (manufacturers)
  • 3321005Cast Iron Pipe & Fittings
  • 3321006Foundries-Gray Iron (manufacturers)
  • 3321007Pressure Pipe & Fittings, Cast Iron
  • 3321008Foundries-Ductile Iron (manufacturers)
  • 3321009Sewer Pipe (manufacturers)
  • 3321010Sash Balances & Weights (manufacturers)
  • 3321011Soil Pipe & Fittings-Cast Iron
  • 3321012Foundries-Nickel & Alloys (manufacturers)
  • 3321013Water Pipe, Cast Iron
  • 3321014Cooking Utensils, Cast Iron
  • 3321015Gray Iron Ingot Molds, Cast
  • 3321016Manhole Covers (manufacturers)
  • 3321017Railroad Car Wheels & Brake Shoes, Cast Iron
  • 3321018Rolling Mill Rolls, Cast Iron

8-digit SIC

  • 33210000Gray And Ductile Iron Foundries
  • 33210100Cast Iron Pipe And Fittings
  • 33210101Pressure Pipe And Fittings, Cast Iron
  • 33210102Sewer Pipe, Cast Iron
  • 33210103Soil Pipe And Fittings: Cast Iron
  • 33210104Water Pipe, Cast Iron
  • 33219901Cooking Utensils, Cast Iron
  • 33219902Ductile Iron Castings
  • 33219903Gray Iron Castings, Nec
  • 33219904Gray Iron Ingot Molds, Cast
  • 33219905Manhole Covers, Metal
  • 33219906Railroad Car Wheels And Brake Shoes, Cast Iron
  • 33219907Rolling Mill Rolls, Cast Iron