Graphite Stopper Rod for Molten Metal Pouring from Canada
Refractory graphite stopper rod used to control molten steel pouring from ladles. High free carbon content (>50%) provides thermal shock resistance after ceramic firing process. Standard equipment in foundries.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide foundry usage documentation to prevent classification as general rods (Chapter 72)
• Carbon content lab reports mandatory for >50% threshold verification
• Consider bulk vs individual packaging for potential set classification changes