2022 NAICS national industry in sector 31-33 Manufacturing
331420 Copper Rolling, Drawing, Extruding, and Alloying
NAICS 331420 is the US industry code for copper rolling, drawing, extruding, and alloying. It covers establishments primarily engaged in one or more of the following: (1) recovering copper or copper alloys from scraps; (2) alloying purchased copper; (3) rolling, drawing, or extruding shapes (e.g., bar, plate, sheet, strip, tube, wire) from purchased copper; and (4) recovering copper or copper alloys from scrap and rolling, drawing, or extruding shapes (e.g., bar, plate, sheet, strip, tube, wire).
- Code
- 331420 (2022 NAICS)
- Title
- Copper Rolling, Drawing, Extruding, and Alloying
- Part of
- Nonferrous Metal (except Aluminum) Production and Processing
- SBA small business limit
- Up to 1,050 employees
- Closest UK SIC
- 24200, 25990, 27320 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This industry comprises establishments primarily engaged in one or more of the following: (1) recovering copper or copper alloys from scraps; (2) alloying purchased copper; (3) rolling, drawing, or extruding shapes (e.g., bar, plate, sheet, strip, tube, wire) from purchased copper; and (4) recovering copper or copper alloys from scrap and rolling, drawing, or extruding shapes (e.g., bar, plate, sheet, strip, tube, wire).
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Smelting copper ore, primary copper refining, and/or rolling, drawing, or extruding primary copper made in the same establishment are classified in Industry 331410, Nonferrous Metal (except Aluminum) Smelting and Refining.
- Manufacturing wire products from purchased copper wire are classified in Industry 33261, Spring and Wire Product Manufacturing.
- Die-casting purchased copper are classified in U.S. Industry 331523, Nonferrous Metal Die-Casting Foundries.
- Rolling, drawing, or extruding shapes from purchased nonferrous metals (except copper and aluminum) or recovering nonferrous metals (except copper and aluminum) from scrap and rolling, drawing, or extruding are classified in U.S. Industry 331491, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding.
- Recovering nonferrous metals (except copper, aluminum) from scrap and making primary forms and/or alloying purchased nonferrous metals (except copper and aluminum) are classified in U.S. Industry 331492, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum).
- Insulating purchased copper wire are classified in U.S. Industry 335929, Other Communication and Energy Wire Manufacturing.
- 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 562920, Materials Recovery Facilities.
- Sorting, breaking up, and wholesaling scrap metal without also smelting or refining are classified in Industry 423930, Recyclable Material Merchant Wholesalers.
Activities listed under 331420
The Census index assigns these 49 activities to this code. If your business matches one, this is your code.
- Aircraft and automotive wire or cable made from purchased copper in wire drawing plants
- Alloying purchased copper
- Alloying purchased copper metals
- Apparatus wire or cord made from purchased copper in wire drawing plants
- Armored cable made from purchased copper in wire drawing plants
- Armored cable, copper, made in integrated secondary smelting and drawing plants
- Bar, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Brass products, rolling, drawing, or extruding, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Bronze products, rolling, drawing, or extruding, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Cable, copper (e.g., armored, bare, insulated), made from purchased copper in wire drawing plants
- Cable, copper (e.g., armored, bare, insulated), made in integrated secondary smelting and wire drawing plants
- Cartridge cups, discs, and sheets, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Coaxial cable, copper, made from purchased copper in wire drawing plants
- Communications wire or cable, copper, made from purchased copper in wire drawing plants
- Copper alloys (e.g., brass, bronze) made from purchased metal or scrap
- Copper and copper-based shapes (e.g., cake, ingot, slag, wire bar) made from purchased metal or scrap
- Copper foil made from purchased metal or scrap
- Copper powder, flakes, and paste made from purchased copper
- Copper products made by drawing purchased copper
- Copper products made by rolling, drawing, or extruding purchased copper
- Copper products made in integrated secondary smelting and extruding mills
- Copper products made in integrated secondary smelting mills and drawing plants
- Copper secondary smelting and alloying
- Copper secondary smelting and refining from purchased metal or scrap
- Cord sets, flexible, made from purchased copper in wire drawing plants
- Energy wire or cable, copper, made from purchased copper in wire drawing plants
- Foil, copper, made from purchased metal or scrap
- Insulated wire or cable made from purchased copper in wire drawing plants
- Insulated wire or cable, copper, made in integrated secondary smelting and wire drawing plants
- Magnet wire, insulated, made from purchased copper in wire drawing plants
- Mesh, wire, made from purchased copper in wire drawing plants
- Metal powder and flake made from purchased copper
- Paste made from purchased copper
- Pipe, extruded and drawn, brass, bronze, and copper, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Plate, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Powder made from purchased copper
- Refining copper, secondary
- Rod, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Sheet, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Shipboard cable made from purchased copper in wire drawing plants
- Signal and control cable made from purchased copper in wire drawing plants
- Strip, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Tubing, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
- Weatherproof wire or cable made from purchased copper in wire drawing plants
- Wire cloth made from purchased copper in wire drawing plants
- Wire cloth, copper, made in integrated secondary smelting and wire drawing plants
- Wire, copper (e.g., armored, bare, insulated), made from purchased copper in wire drawing plants
- Wire, copper (e.g., armored, bare, insulated), made in integrated secondary smelting and wire drawing plants
- Wire, mechanical, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants
SBA size standard for 331420
To count as a small business for SBA loans and federal contracts under NAICS 331420, your business (including affiliates) must not exceed 1,050 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2420, 2599, 2732), so treat them as a starting point and check the definition.
- 24200Manufacture of tubes, pipes, hollow profiles and related fittings, of steelUK SIC
- 25990Manufacture of other fabricated metal products n.e.c.UK SIC
- 27320Manufacture of other electronic and electric wires and cablesUK SIC
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.