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7002.31.00.00/Fused Silica Thermocouple Protection Tubes/Japan

Fused Silica Thermocouple Protection Tubes from Japan

Unworked protective tubes for thermocouples in high-temperature environments like glass melting tanks. Made from pure fused quartz to withstand molten glass contact without devitrification. Classified in 7002.31.00.00 as unworked tubes of fused silica.

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%
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Import Tips

• Specify closed-end vs open-end configurations in invoices to match statistical reporting

• Thermal shock resistance data helps prove fused quartz composition vs crystalline forms

Fused Silica Thermocouple Protection Tubes from Japan — Import Duty Rate | HTS 7002.31.00.00