6903.90.00.50/Silicon Carbide Thermocouple Tube/Japan

Silicon Carbide Thermocouple Tube from Japan

Hexagonal silicon carbide tube sheathing thermocouples in kilns and furnaces up to 1600°C. HTS 6903.90.00.50 covers this refractory ceramic tube, fired from nonmetallic carbides, excluding electrical insulators. Essential for industrial heat measurement protection.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Calculate with your customs value Verify classification with AI

Import Tips

• Certify SiC composition >90% with firing certificates; distinguish from graphite tubes via material specs; bundle with furnace documentation to prevent parts classification