Silicon Nitride Thermowell from Germany
Silicon nitride ceramic thermowell protecting temperature sensors in petrochemical furnaces. HTS 6903.90.00 refractory tubes/sheaths for high-corrosion environments. Advanced nitride ceramics fired per Chapter requirements.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Petrochemical end-use certification; prove >1400°C service temperature
• Avoid Chapter 85 sensor classification by importing separately