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Turbine Blade Cooling Inserts from Japan

Internal inserts that enhance air cooling passages within turbine blades of non-aircraft gas turbines. Made from porous high-temperature alloys for power generation service. HTS 8411.91.90.40 includes these specialized non-aircraft turbine parts.

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%

Import Tips

Provide porosity specifications and cooling airflow test data for classification support

Declare as blade subcomponents, not standalone inserts, to maintain turbine parts status

Avoid misclassification by including integration instructions with parent blades