423510 — Metal Service Centers and Other Metal Merchant Wholesalers
Description
This industry comprises establishments primarily engaged in the merchant wholesale distribution of products of the primary metals industries. Service centers maintain inventory and may perform functions, such as sawing, shearing, bending, leveling, cleaning, or edging, on a custom basis as part of sales transactions.
Illustrative Examples
- Cast iron pipe merchant wholesalers
- Metal rods merchant wholesalers
- Metal bars (except precious) merchant wholesalers
- Metal sheets merchant wholesalers
- Metal spikes merchant wholesalers
- Metal ingots (except precious) merchant wholesalers
- Metal pipe merchant wholesalers
- Nails merchant wholesalers
- Metal plates merchant wholesalers
- Noninsulated wire merchant wholesalers
Overview Facts
| NAICS Code | 423510 |
|---|---|
| Industry Title | Metal Service Centers and Other Metal Merchant Wholesalers |
| SBA Size Standard | 200 employees |
| IRS PBA Code | 423500 (rolled-up match) |
| Sectors Hierarchy | Sector 42 → 423 → 4235 |
| 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 5051 - Metals Service Centers and Offices (via SIC1987:5051→NAICS1997:42151→2002:423510→2007:423510→2012:423510→2017:423510→2022:423510)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 423510:
- Sector 42 Directory Hub — List of related industries in the Wholesale Trade 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 4235
Frequently Asked Questions (FAQ)
Is 423510 a valid 2022 NAICS code?
NAICS 423510 is 'Metal Service Centers and Other Metal Merchant Wholesalers', a 2022 U.S. national industry under Sector 42 (Wholesale Trade); the SBA small-business size standard is 200 employees.
What is the SBA size standard for NAICS 423510?
The SBA small business size standard for NAICS 423510 is 200 employees (based on employees).
What is the legacy SIC code mapping for 423510?
NAICS code 423510 maps to the legacy 1987 SIC codes: 5051 - Metals Service Centers and Offices.