SIC 3297 — Nonclay Refractories
SIC 3297 is 'Nonclay Refractories', a 4-digit Standard Industrial Classification (SIC) code under Major Group 32: Stone, Clay, Glass, and Concrete Products (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 327120 (Clay Building Material and Refractories Manufacturing).
Description & Classification
SIC code 3297 representing 'Nonclay Refractories' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 327120 - Clay Building Material and Refractories Manufacturing (via SIC1987:3297→NAICS1997:327125→2002:327125→2007:327125→2012:327120→2017:327120→2022:327120)
Classification Details
| SIC Code | 3297 |
|---|---|
| Industry Title | Nonclay Refractories |
| Division | Division D: Manufacturing |
| Major Group | Major Group 32: Stone, Clay, Glass, and Concrete Products |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 3297:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 32 Hub — View other legacy industries in this business division.
Related Industries in Major Group 32
Frequently Asked Questions (FAQ)
What industry does SIC code 3297 represent?
SIC 3297 is 'Nonclay Refractories', a 4-digit Standard Industrial Classification (SIC) code under Major Group 32: Stone, Clay, Glass, and Concrete Products (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 327120 (Clay Building Material and Refractories Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3297?
SIC code 3297 maps to modern NAICS codes: 327120 - Clay Building Material and Refractories Manufacturing.