331314 — Secondary Smelting and Alloying of Aluminum

Q: Is NAICS code 331314 valid in 2022?

Yes, 331314 is a valid 6-digit 2022 NAICS national industry code representing 'Secondary Smelting and Alloying of Aluminum'. This U.S. industry comprises establishments primarily engaged in (1) recovering aluminum and aluminum alloys from scrap and/or dross (i.e., secondary smelting) and making billet or ingot (except by rolling) and/or (2) manufacturing alloys, powder, paste, or flake from purchased aluminum.

Q: What is the legacy SIC equivalent for NAICS 331314?

NAICS code 331314 maps to the following legacy 1987 SIC codes: 3341 - Secondary Smelting and Refining of Nonferrous Metals, 3399 - Primary Metal Products, NEC.

NAICS 331314 is 'Secondary Smelting and Alloying of Aluminum', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 750 employees.

Description

This U.S. industry comprises establishments primarily engaged in (1) recovering aluminum and aluminum alloys from scrap and/or dross (i.e., secondary smelting) and making billet or ingot (except by rolling) and/or (2) manufacturing alloys, powder, paste, or flake from purchased aluminum.

Overview Facts

NAICS Code	331314
Industry Title	Secondary Smelting and Alloying of Aluminum
SBA Size Standard	750 employees
IRS PBA Code	331310 (rolled-up match)
Sectors Hierarchy	Sector 31-33 → 331 → 3313
Source / Verified	US Census 2022 NAICS Manual / 2026-06-28

NAICS Structure: 331314 National Industry

Sector (2)

31-33

Manufacturing

Subsector (3)

331

Primary Metal Manufacturing

Industry Group (4)

3313

Alumina and Aluminum Production and Processing

Industry (5)

33131

Alumina and Aluminum Production and Processing

National Industry (6)

331314

Secondary Smelting and Alloying of Aluminum

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→NAICS1997:331314→2002:331314→2007:331314→2012:331314→2017:331314→2022:331314)
SIC 3399 - Primary Metal Products, NEC (via SIC1987:3399→NAICS1997:331314→2002:331314→2007:331314→2012:331314→2017:331314→2022:331314)

Related Resources & Compliance Guides

Further regulatory reference links for NAICS code 331314:

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 3313

331313 - Alumina Refining and Primary Aluminum Pr...331315 - Aluminum Sheet, Plate, and Foil Manufact...331318 - Other Aluminum Rolling, Drawing, and Ext...

Frequently Asked Questions (FAQ)

Is 331314 a valid 2022 NAICS code?

NAICS 331314 is 'Secondary Smelting and Alloying of Aluminum', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 750 employees.

What is the SBA size standard for NAICS 331314?

The SBA small business size standard for NAICS 331314 is 750 employees (based on employees).

What is the legacy SIC code mapping for 331314?

NAICS code 331314 maps to the legacy 1987 SIC codes: 3341 - Secondary Smelting and Refining of Nonferrous Metals, 3399 - Primary Metal Products, NEC.