NAICS UNIVERSITY · Free research for insurance agents
Carbon and Graphite Product Manufacturing
NAICS 335991 · United States · 2022 edition
This U.S. industry comprises establishments primarily engaged in manufacturing carbon, graphite, and metal- graphite brushes and brush stock; carbon or graphite electrodes for thermal and electrolytic uses; carbon and graphite fibers; and other carbon, graphite, and metal-graphite products.
Activities described by this code
Other activities to examine
Census classification reference
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Compare another operationInsurance operations research — draft
These establishments manufacture carbon and graphite products — including motor and generator brushes, industrial electrodes for arc furnaces and electrolytic cells, carbon fiber materials, and specialty graphite components — primarily for industrial, electrical, and advanced materials markets. Production typically involves high-temperature processing, graphitization furnaces, and precision machining of carbon and graphite stock, with finished products sold to OEMs and industrial end users.
Questions to investigate
- What specific product lines are manufactured — brushes, electrodes, carbon fiber, specialty graphite, or a combination?
- What industries do the finished products serve — industrial motors, steel production, aerospace, automotive, or others?
- What dust collection and fire suppression systems are in place for carbon and graphite machining areas?
- Are any products supplied into aerospace, defense, or other safety-critical certified supply chains?
This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.