AISI 4130 Seamless Pipe Billet
Chromoly AISI 4130 steel billets specifically for piercing into seamless tubing used in aircraft and oilfield applications. Under 7224.90.00 as other semi-finished alloy steel products, primary form before extrusion.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fully processed into seamless pipes/tubes
Finished seamless alloy steel pipes shift to Chapter 73 tubes/pipes heading.
If hot-rolled into hollow drill bars
Hollow semi-finished or hot-rolled forms for drilling classified separately.
If high-strength steel per note (a)
Meets minimum yield point criteria, moving to specific high-strength semi-finished category.
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Import Tips & Compliance
• Specify end-use in entry docs if needed for verification; billets must not be drilled/hollow
• Beware of quota restrictions under Section 232 steel proclamations
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