NAICS Code 331318 — Other Aluminum Rolling, Drawing, and Extruding

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 4 national industries under 33131 (Alumina and Aluminum Production and Processing).

Code	331318
Title	Other Aluminum Rolling, Drawing, and Extruding
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	750 employees

Official definition (2022 NAICS)

This U.S. industry comprises establishments primarily engaged in (1) rolling, drawing, or extruding shapes (except flat rolled sheet, plate, foil, and welded tube) from purchased aluminum and/or (2) recovering aluminum from scrap and rolling, drawing, or extruding shapes (except flat rolled sheet, plate, foil, and welded tube) in integrated mills.

Illustrative Examples:

Aluminum bar made by extruding purchased aluminum

Nails, aluminum, made in wire drawing plants

Structural shapes made by rolling purchased aluminum

Rod made by extruding purchased aluminum

Tube made by drawing or extruding purchased aluminum

Wire, bare, made in aluminum wire drawing plants

Is a business under 331318 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 331318 qualifies as a small business if it does not exceed 750 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.

Where 331318 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	331	Primary Metal Manufacturing
Industry Group	3313	Alumina and Aluminum Production and Processing
NAICS Industry	33131	Alumina and Aluminum Production and Processing
National Industry	331318	Other Aluminum Rolling, Drawing, and Extruding

No direct SIC mapping is shown for this code: it was introduced or redefined after the official 1987 SIC ↔ 2002 NAICS concordance. Use the crosswalk tool to explore related legacy codes.

Related National Industry codes

• 331313 — Alumina Refining and Primary Aluminum Production
• 331314 — Secondary Smelting and Alloying of Aluminum
• 331315 — Aluminum Sheet, Plate, and Foil Manufacturing

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.