Welded Square Alloy Steel Tube 50x50x2mm from China
A welded square tube made from alloy steel with external dimensions of 50mm x 50mm and a wall thickness of 2mm, featuring a noncircular square cross-section. It falls under HTS 7306.61.70.60 as it is a welded tube of alloy steel with square cross-section and wall thickness less than 4mm, classified as 'other'. These tubes are commonly used in structural frameworks and machinery guards.
Duty Rate — China → United States
Rate breakdown
Import Tips
• Verify alloy steel composition meets Chapter 73 definitions with mill test certificates to avoid reclassification to carbon steel headings
• Ensure wall thickness documentation is precise, as 4mm threshold determines subheading; common pitfall is measurement disputes at customs
• Label as 'welded' and provide weld seam inspection reports for compliance with 'other tubes, pipes' criteria