Grade 4340 Small Diameter Seamless Tubing
High-tensile 4340 alloy steel seamless tubes under 38.1 mm OD for automotive roll cages and suspension components. Classified HTS 7304.59.80.10 for other alloy steel seamless pipes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fabricated into vehicle chassis parts
Assembled into finished vehicle parts under Chapter 87.
If supplied as hollow bars
Hollow bars/rods distinguished from pipes by end-use and processing.
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Import Tips & Compliance
• Heat treatment condition (normalized/annealed) must be documented; DOT compliance for automotive use; bundle securely to prevent diameter distortion
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