331420 — Copper Rolling, Drawing, Extruding, and Alloying
Description
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) (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3341 - Secondary Smelting and Refining of Nonferrous Metals (via SIC1987:3341→NAICS1997:331423→2002:331423→2007:331423→2012:331420→2017:331420→2022:331420)
- SIC 3351 - Rolling, Drawing, and Extruding of Copper (via SIC1987:3351→NAICS1997:331421→2002:331421→2007:331421→2012:331420→2017:331420→2022:331420)
- SIC 3357 - Drawing and Insulating of Nonferrous Wire (via SIC1987:3357→NAICS1997:331422→2002:331422→2007:331422→2012:331420→2017:331420→2022:331420)
- SIC 3399 - Primary Metal Products, NEC (via SIC1987:3399→NAICS1997:331423→2002:331423→2007:331423→2012:331420→2017:331420→2022:331420)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3422 — Rolling Mills and Drawing Machines
- PSC 4710 — Pipe, Tube and Rigid Tubing
- PSC 9640 — Iron and Steel Primary and Semifinished Products
- PSC 9650 — Nonferrous Base Metal Refinery and Intermediate Forms
- PSC 9660 — Precious Metals Primary Forms
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 331420 valid in 2022? ▾
Yes, 331420 is a valid 6-digit 2022 NAICS national industry code representing 'Copper Rolling, Drawing, Extruding, and Alloying' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 331420? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,050 employees for NAICS code 331420 (Copper Rolling, Drawing, Extruding, and Alloying), calculated based on employees.
What is the legacy SIC equivalent for NAICS 331420? ▾
According to official Census Bureau concordance tables, NAICS code 331420 (Copper Rolling, Drawing, Extruding, and Alloying) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3341 - Secondary Smelting and Refining of Nonferrous Metals, 3351 - Rolling, Drawing, and Extruding of Copper, 3357 - Drawing and Insulating of Nonferrous Wire, 3399 - Primary Metal Products, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 331420:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 331420 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Copper Rolling, Drawing, Extruding, and Alloying).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.