NAICS 331318
Overview
The North American Industry Classification System (NAICS) is the federal standard for classifying business establishments to support consistent collection, analysis, and publication of U.S. economic statistics. Developed by the Office of Management and Budget in coordination with Statistics Canada and Mexico’s INEGI, NAICS was adopted in 1997; the current U.S. statistical vintage is 2022. 1
NAICS 331318 — Other Aluminum Rolling, Drawing, and Extruding — covers establishments primarily engaged in rolling, drawing, or extruding aluminum shapes (excluding flat-rolled sheet, plate, foil, and welded tube) from purchased aluminum; it also includes integrated operations that recover aluminum from scrap and then roll, draw, or extrude. Illustrative products include non-welded drawn tube, structural shapes, nails made in wire-drawing plants, and bare aluminum wire. 2
See also on G2X:
What this NAICS covers
- Rolling, drawing, or extruding aluminum shapes (other than flat-rolled sheet, plate, foil, or welded tube) from purchased aluminum. 2
- Producing aluminum shapes through integrated operations that recover aluminum from scrap and then roll, draw, or extrude. 2
- Drawing aluminum tube (non-welded). 2
- Manufacturing structural shapes (e.g., angles, channels, tees, zees) from purchased aluminum. 2
- Producing bare aluminum wire and aluminum nails in wire-drawing plants. 2
Related NAICS and PSC codes
| Type | Code | Descriptor |
|---|---|---|
| NAICS | 331315 | Aluminum Sheet, Plate, and Foil Manufacturing (flat rolling/continuous casting; excludes shapes in NAICS 331318). 2 |
| NAICS | 331316 | Aluminum Extruded Product Manufacturing (extruded rod, bar, pipe, tube, and tube blooms). 2 |
| PSC | 9525 | Wire, Nonelectrical, Nonferrous Base Metal (includes bulk non-electrical aluminum wire). 3 |
| PSC | 9535 | Plate, Sheet, Strip, and Foil; Nonferrous Base Metal (nonferrous flat-rolled aluminum forms). 3 |
Key boundaries and exclusions
- Flat-rolled aluminum sheet, plate, foil, and welded tube fall under NAICS 331315, not NAICS 331318. 2
- Extruded aluminum rod, bar, pipe, tube, and tube blooms are classified in NAICS 331316. 2
- Making aluminum from alumina and then producing shapes is classified in NAICS 331313. 2
- Sorting or breaking scrap without smelting/refining is in NAICS 423930 or NAICS 562920, not manufacturing. 2
Frequently asked questions
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What activities are included in NAICS 331318?
Establishments roll, draw, or extrude aluminum shapes (excluding flat-rolled sheet, plate, foil, and welded tube) from purchased aluminum, or recover aluminum from scrap and perform the same processes in integrated mills. Examples include drawn (non-welded) tube, structural shapes, nails, and bare wire. 2
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How does NAICS 331318 differ from NAICS 331315 and NAICS 331316?
NAICS 331315 covers flat-rolled sheet, plate, foil, and welded tube; NAICS 331316 covers extruded rod, bar, pipe, tube, and tube blooms. NAICS 331318 covers other aluminum rolling, drawing, and extruding not in those categories. 2
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Are welded tube and insulated aluminum wire part of NAICS 331318?
Welded tube is excluded and classified under NAICS 331315. NAICS 331318 includes drawn non-welded tube and bare aluminum wire; classification of insulated aluminum wire manufacturing is not specified by official sources. 2
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Which PSCs commonly align with products from NAICS 331318?
Product buys often report under PSC Group 95, including PSC 9525 (non-electrical nonferrous wire), PSC 9530 (nonferrous bars and rods), PSC 9535 (nonferrous plate/sheet/strip/foil), and PSC 9540 (nonferrous structural shapes). 3
See also on G2X: PSC 9525, PSC 9530, PSC 9535, PSC 9540.
Useful resources
- G2X — NAICS 331318
- U.S. Census Bureau — NAICS main/search page (overview and 2022 NAICS tools). 1
- 2022 NAICS Manual — official titles, definitions, and cross-references (PDF). 2
- Product and Service Codes (PSC) Manual (April 2025) — official PSC definitions (PDF). 3
References
- U.S. Census Bureau — North American Industry Classification System (NAICS) main/search page (Introduction to NAICS), 2022 structure available: https://www.census.gov/naics
- U.S. Census Bureau — 2022 NAICS Manual (see 331318 definition and cross-references), PDF: https://www.census.gov/naics/reference_files_tools/2022_NAICS_Manual.pdf
- U.S. General Services Administration — Product and Service Codes (PSC) Manual, April 2025 (see Group 95 entries 9525, 9530, 9535, 9540), PDF: https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf
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