Gallium Arsenide Crystal Puller Guide Roll
Cast steel guide roll for pullers processing gallium arsenide boules for compound semiconductor wafers, weighing under 2,268 kg. HTS 8455.30.0035 applies as rolls for rolling mills in specialized material processing. Provides precise guidance to prevent boule defects during growth.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not cast steel composition
Other rolling mill parts (non-steel) go to 8455.90, splitting from cast steel subheading.
If incorporating measuring devices
If equipped with integrated resistivity sensors, shifts to Chapter 90 measuring apparatus.
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Import Tips & Compliance
• Certify material compatibility with GaAs via chemical analysis reports
• Declare exact boule diameter specs to match statistical note criteria
• Watch for weight variances post-machining; measure and document final weight
Related Products under HTS 8455.30.00.35
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