8412.90.90.50/Rocket Engine Heat Shield Liner/Japan

Rocket Engine Heat Shield Liner from Japan

Ablative or ceramic thermal protection liner that shields rocket engine structures from combustion chamber temperatures exceeding 3000°C. Covered by HTS 8412.90.9050 as protective parts of reaction engines.

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

• Provide ablation rate and temperature profile test data to verify rocket combustion protection function

• Specify material composition (phenolics, carbon-carbon) matching rocket engine requirements

• Document as 'engine-specific' to avoid generic refractory material classification