8431.49.90.81/Czochralski Crystal Puller Forged Steel Crucible Holder/Japan

Czochralski Crystal Puller Forged Steel Crucible Holder from Japan

This forged steel component is a precision-machined holder for the crucible in Czochralski crystal pullers used in semiconductor wafer manufacturing equipment under heading 8426. It supports the high-temperature growth of monocrystalline silicon boules, ensuring stability during the pulling process. Classified under 8431.49.90.81 as a steel forging part solely for semiconductor processing machinery.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.82.2215%Derivative steel articles the product of Argentina, Ecuador, El Salvador, Guatemala, Japan, the Republic of Korea, Liechtenstein, Switzerland, Taiwan, the United Kingdom, or a member nation of the European Union, as provided for in subdivision (c)(xi) of U.S. note 16 to this subchapter

9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

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Import Tips

• Verify the forging certification and material composition (e.g

• high-purity steel) to confirm suitability solely for semiconductor equipment under statistical notes

• Include detailed engineering drawings and end-use statements proving principal use with heading 8426 machinery to avoid misclassification

• Watch for anti-dumping duties on certain steel forgings; declare exact alloy specs to prevent customs holds