331513 — Steel Foundries (except Investment)
Description
This U.S. industry comprises establishments primarily engaged in manufacturing steel castings (except steel investment castings). Establishments in this industry purchase steel made in other establishments (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3325 - Steel Foundries, NEC (via SIC1987:3325→NAICS1997:331513→2002:331513→2007:331513→2012:331513→2017:331513→2022:331513)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3680 — Foundry Machinery, Related Equipment and Supplies.
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 331513 valid in 2022? ▾
Yes, 331513 is a valid 6-digit 2022 NAICS national industry code representing 'Steel Foundries (except Investment)' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 331513? ▾
The Small Business Administration (SBA) has established a small business size standard of 700 employees for NAICS code 331513 (Steel Foundries (except Investment)), calculated based on employees.
What is the legacy SIC equivalent for NAICS 331513? ▾
According to official Census Bureau concordance tables, NAICS code 331513 (Steel Foundries (except Investment)) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3325 - Steel Foundries, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 331513:
- 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.
- NAICS 331513 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Steel Foundries (except Investment)).
- 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.