331492 — Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)
Description
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.
Overview Facts
| NAICS Code | 331492 |
|---|---|
| Industry Title | Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) |
| SBA Size Standard | 850 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→NAICS1997:331492→2002:331492→2007:331492→2012:331492→2017:331492→2022:331492)
- SIC 3399 - Primary Metal Products, NEC (via SIC1987:3399→NAICS1997:331492→2002:331492→2007:331492→2012:331492→2017:331492→2022:331492)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 331492:
- 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 331492 a valid 2022 NAICS code?
NAICS 331492 is 'Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 850 employees.
What is the SBA size standard for NAICS 331492?
The SBA small business size standard for NAICS 331492 is 850 employees (based on employees).
What is the legacy SIC code mapping for 331492?
NAICS code 331492 maps to the legacy 1987 SIC codes: 3341 - Secondary Smelting and Refining of Nonferrous Metals, 3399 - Primary Metal Products, NEC.