NAICS 5 Digit Industry 33131

Industry 33131

NAICS 5  Digit Industry 33131 – Alumina and Aluminum Production and Processing

Definition of NAICS 5 Digit Industry 33131: This industry comprises establishments primarily engaged in one or more of the following:

  1. Refining alumina;
  2. Making (i.e., the primary production) aluminum from alumina;
  3. Recovering aluminum from scrap or dross;
  4. Alloying purchased aluminum; and
  5. Manufacturing aluminum primary forms (e.g., bar, foil, pipe, plate, rod, sheet, tube, wire).

Cross-References for NAICS Code 33131

What codes are similar to this industry that might be more applicable? The cross-reference guide below displays the codes that are similar to industry 33131. Please review to find the most applicable classification.

  • Manufacturing aluminum oxide abrasives and refractories–are classified in Subsector 327, Nonmetallic Mineral Product Manufacturing;
  • Sorting and breaking up scrap aluminum metal without also smelting or refining–are classified in Sector 42, Wholesale Trade; and
  • Operating facilities where commingled recyclable materials, such as paper, plastics, used beverage cans, and metals are sorted into distinct categories without also smelting or refining–are classified in Industry 56292, Materials Recovery Facilities.

Other Index Entries for NAICS 5-Digit Industry 33131

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with industry 33131. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Alloying purchased aluminum metals
  • Alumina refining
  • Aluminum alloys made from bauxite or alumina producing primary aluminum and manufacturing
  • Aluminum alloys made from scrap or dross
  • Aluminum bar made by extruding purchased aluminum
  • Aluminum bar made in integrated secondary smelting and extruding mills
  • Aluminum billet made from purchased aluminum
  • Aluminum billet made in integrated secondary smelting and rolling mills
  • Aluminum extrusion ingot (i.e., billet), secondary
  • Aluminum flakes made from purchased aluminum
  • Aluminum foil made by flat rolling purchased aluminum
  • Aluminum foil made in integrated secondary smelting and flat rolling mills
  • Aluminum ingot and other primary aluminum production shapes made from bauxite or alumina
  • Aluminum ingot made from purchased aluminum
  • Aluminum ingot, secondary smelting of aluminum and manufacturing
  • Aluminum ingot, secondary, manufacturing
  • Aluminum oxide refining
  • Aluminum pipe made by extruding purchased aluminum
  • Aluminum pipe made in integrated secondary smelting and extruding mills
  • Aluminum plate made by continuous casting purchased aluminum
  • Aluminum plate made by flat rolling purchased aluminum
  • Aluminum plate made in integrated secondary smelting and continuous casting mills
  • Aluminum plate made in integrated secondary smelting and flat rolling mills
  • Aluminum producing from alumina
  • Aluminum recovering from scrap and making ingot and billet (except by rolling)
  • Aluminum rod made by extruding purchased aluminum
  • Aluminum rod made in integrated secondary smelting and extruding mills
  • Aluminum shapes (e.g., bar, ingot, rod, sheet) made by producing primary aluminum and manufacturing
  • Aluminum sheet made by flat rolling purchased aluminum
  • Aluminum sheet made in integrated secondary smelting and flat rolling mills
  • Aluminum smelting, secondary, and making ingot and billet (except by rolling)
  • Aluminum tube blooms made by extruding purchased aluminum
  • Aluminum tube blooms made in integrated secondary smelting and extruding mills
  • Aluminum tube made by drawing or extruding purchased aluminum
  • Aluminum tube made in integrated secondary smelting and drawing plants
  • Aluminum tube made in integrated secondary smelting and extruding mills
  • Aluminum welded tube made by flat rolling purchased aluminum
  • Aluminum welded tube made in integrated secondary smelting and flat rolling mills
  • Apparatus wire or cord made in aluminum wire drawing plants
  • Automotive or aircraft wire and cable made in aluminum wire drawing plants
  • Bar made by extruding purchased aluminum
  • Bar made by rolling purchased aluminum
  • Bar, aluminum, made in integrated secondary smelting and extruding mills
  • Bar, aluminum, made in integrated secondary smelting and rolling mills
  • Coaxial cable made in aluminum wire drawing plants
  • Communications wire or cable made in aluminum wire drawing plants
  • Cord sets, flexible, made in aluminum wire drawing plants
  • Energy wire or cable made in aluminum wire drawing plants
  • Extrusion billet made by rolling purchased aluminum
  • Extrusion billet, aluminum, made in integrated secondary smelting and rolling mills
  • Extrusion ingot made by rolling purchased aluminum
  • Extrusion ingot, aluminum, made in integrated secondary smelting and rolling mills
  • Extrusion ingot, primary aluminum, manufacturing
  • Flakes, aluminum, made from purchased aluminum
  • Foil, aluminum, made by flat rolling purchased aluminum
  • Foil, aluminum, made in integrated secondary smelting and flat rolling mills
  • Ingot made by rolling purchased aluminum
  • Ingot, aluminum, made in integrated secondary smelting and rolling mills
  • Ingot, primary aluminum, manufacturing
  • Insulated wire or cable made in aluminum wire drawing plants
  • Magnet wire, insulated, made in aluminum wire drawing plants
  • Mesh, wire, made in aluminum wire drawing plants
  • Metal powder and flake made from purchased aluminum
  • Nails, aluminum, made in wire drawing plants
  • Paste made from purchased aluminum
  • Pipe made by extruding purchased aluminum
  • Pipe, aluminum, made in integrated secondary smelting and extruding mills
  • Plate, aluminum, made by continuous casting purchased aluminum
  • Plate, aluminum, made by flat rolling purchased aluminum
  • Plate, aluminum, made in integrated secondary smelting and continuous casting mills
  • Plate, aluminum, made in integrated secondary smelting and flat rolling mills
  • Powder made from purchased aluminum
  • Primary aluminum production and manufacturing aluminum alloys
  • Primary aluminum production and manufacturing aluminum shapes (e.g., bar, ingot, rod, sheet)
  • Primary refining of aluminum
  • Primary smelting of aluminum
  • Rails made by rolling or drawing purchased aluminum
  • Rails, aluminum, made in integrated secondary smelting and drawing plants
  • Rails, aluminum, made in integrated secondary smelting and rolling mills
  • Refining aluminum, primary
  • Refining aluminum, secondary
  • Rod made by extruding purchased aluminum
  • Rod made by rolling purchased aluminum
  • Rod, aluminum, made in integrated secondary smelting and extruding mills
  • Rod, aluminum, made in integrated secondary smelting and rolling mills
  • Sheet, aluminum, made by flat rolling purchased aluminum
  • Sheet, aluminum, made in integrated secondary smelting and flat rolling mills
  • Shipboard cable made in aluminum wire drawing plants
  • Signal and control cable made in aluminum wire drawing plants
  • Slab, primary aluminum, manufacturing
  • Structural shapes made by rolling purchased aluminum
  • Structural shapes, aluminum, made in integrated secondary smelting and rolling mills
  • Tube blooms made by extruding purchased aluminum
  • Tube blooms, aluminum, made in integrated secondary smelting and extruding mills
  • Tube made by drawing or extruding purchased aluminum
  • Tube, aluminum, made in integrated secondary smelting and drawing plants
  • Tube, aluminum, made in integrated secondary smelting and extruding mills
  • Tube, welded, aluminum, made by flat rolling purchased aluminum
  • Tube, welded, aluminum, made in integrated secondary smelting and flat rolling mills
  • Weatherproof wire or cable made in aluminum wire drawing plants
  • Wire cloth made in aluminum wire drawing plants
  • Wire screening, aluminum, made in integrated secondary smelting and drawing plants
  • Wire, armored, made in aluminum wire drawing plants
  • Wire, bare, made in aluminum wire drawing plants
  • Wire, insulated, made in aluminum wire drawing plants

Industry Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry (Where you are now), and the most specific is the 6 digit NAICS code. If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 31-33: Manufacturing
    • Subsector 331: Primary Metal Manufacturing
      • Industry Group 3313: Alumina and Aluminum Production and Processing
        • Industry 33131: Alumina and Aluminum Production and Processing (Current Page)
          • 6 Digit Code(s) NAICS 331313: Alumina Refining and Primary Aluminum Production
          • 6 Digit Code(s) NAICS 331314: Secondary Smelting and Alloying of Aluminum
          • 6 Digit Code(s) NAICS 331315: Aluminum Sheet, Plate, and Foil Manufacturing
          • 6 Digit Code(s) NAICS 331318: Other Aluminum Rolling, Drawing, and Extruding

Other helpful NAICS Downloads

View the download page for the material below.

NAICS 5 Digit Industry 33131 | Class Codes