331210 — Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
NAICS 331210 is 'Iron and Steel Pipe and Tube Manufacturing from Purchased Steel', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 1,000 employees.
Description
This industry comprises establishments primarily engaged in manufacturing welded, riveted, or seamless pipe and tube from purchased iron or steel.
Exclusions & Cross-References
- Establishments primarily engaged in making steel and further processing the steel into steel pipe and tube are
- classified in Industry 331110, Iron and Steel Mills and Ferroalloy Manufacturing.
Overview Facts
| NAICS Code | 331210 |
|---|---|
| Industry Title | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| SBA Size Standard | 1,000 employees |
| IRS PBA Code | 331200 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 331 → 3312 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
NAICS Structure: 331210
National Industry
Sector (2)
31-33
Manufacturing
Subsector (3)
331
Primary Metal Manufacturing
Industry Group (4)
3312
Steel Product Manufacturing from Purchased Steel
Industry (5)
33121
Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
National Industry (6)
331210
Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3317 - Steel Pipe and Tubes (via SIC1987:3317→NAICS1997:33121→2002:331210→2007:331210→2012:331210→2017:331210→2022:331210)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 331210:
- 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 3312
Frequently Asked Questions (FAQ)
Is 331210 a valid 2022 NAICS code?
NAICS 331210 is 'Iron and Steel Pipe and Tube Manufacturing from Purchased Steel', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 1,000 employees.
What is the SBA size standard for NAICS 331210?
The SBA small business size standard for NAICS 331210 is 1,000 employees (based on employees).
What is the legacy SIC code mapping for 331210?
NAICS code 331210 maps to the legacy 1987 SIC codes: 3317 - Steel Pipe and Tubes.