Sintered Tungsten Bar for Catalyst Substrates from China
Unwrought sintered tungsten bars serving as substrates for chemical reactor catalysts in ammonia synthesis. Under HTS 8101.94.00.00 for simple sintered form with catalytic surface properties. Resistant to hydrogen atmospheres.
Duty Rate — China → United States
44.1%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.91.1125%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (j) of U.S. note 31 to this subchapter
Import Tips
• Chemical compatibility certificates aid in proving industrial catalyst use
• No coatings allowed for this heading; coated bars become 8101.99
• REACH compliance for EU chemical precursors—include safety data