NAICS Code 331492 — Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 2 national industries under 33149 (Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, Extruding, and Alloying).

Code	331492
Title	Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	850 employees

Official definition (2022 NAICS)

This U.S. industry comprises establishments primarily engaged in (1) alloying purchased nonferrous metals and/or (2) recovering nonferrous metals from scrap. Establishments in this industry make primary forms (e.g., bar, billet, bloom, cake, ingot, slab, slug, wire) using smelting or refining processes.

Is a business under 331492 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 331492 qualifies as a small business if it does not exceed 850 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 331492 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	331	Primary Metal Manufacturing
Industry Group	3314	Nonferrous Metal (except Aluminum) Production and Processing
NAICS Industry	33149	Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, Extruding, and Alloying
National Industry	331492	Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
3341	Secondary Smelting and Refining of Nonferrous Metals
3399	Primary Metal Products, Not Elsewhere Classified

Related National Industry codes

• 331491 — Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding

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.