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).
Overview Facts
| NAICS Code | 331420 |
|---|---|
| Industry Title | Copper Rolling, Drawing, Extruding, and Alloying |
| SBA Size Standard | 1,050 employees |
| IRS PBA Code | 331400 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 331 → 3314 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
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)
Related Resources & Compliance Guides
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.
- 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.
Related Industries in 3314
Frequently Asked Questions (FAQ)
Is 331420 a valid 2022 NAICS code?
NAICS 331420 is 'Copper Rolling, Drawing, Extruding, and Alloying', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 1,050 employees.
What is the SBA size standard for NAICS 331420?
The SBA small business size standard for NAICS 331420 is 1,050 employees (based on employees).
What is the legacy SIC code mapping for 331420?
NAICS code 331420 maps to the legacy 1987 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.