Alloy Steel Welded Square Hollow Section 50x50mm
A square hollow profile tube of alloy steel, welded construction, 50 mm x 50 mm outer dimensions and 3 mm wall thickness, commonly used in furniture frames and architectural supports. Classified under HTS 7306.69.70.60 due to its noncircular square cross-section, welded seams, alloy material, and thin wall. It is not suitable for high-pressure applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If circular cross section
Circular welded tubes of alloy steel are classified under 7306.61, as cross-sectional shape determines the subheading.
If wall thickness is 4 mm or greater
Heat exchanger tubes have specific provisions; otherwise, thicker walls go to 7306.69.10.
If imported as part of a finished machine
Articles of iron or steel like pre-assembled frames may fall under 7326 if not imported as tube material.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide detailed CAD drawings or photos confirming noncircular cross-section during customs entry
• Label with exact alloy grade (e.g
• 4140) for verification
• Avoid bundling with fittings to prevent set classification issues
Related Products under HTS 7306.69.70.60
Alloy Steel Welded Elliptical Hollow Profile
Elliptical welded alloy steel tube, 70x40 mm, 2.2 mm wall, architectural use. HTS 7306.69.70.60 applies.
Welded Alloy Steel T-Section Tubing
T-profile hollow welded alloy tube, 60 mm flange, 3.5 mm wall. For structural supports. 7306.69.70.60.
Alloy Steel Welded Half-Round Tubing
Half-round noncircular welded alloy tube, 50 mm radius, 2.9 mm wall. Decorative railings.
Custom Noncircular Welded Alloy Steel Tube
Irregular noncircular welded alloy tube <4 mm wall for OEM parts. 'Other' category.
Alloy Steel Welded Oblong Tubing
Oblong rectangular welded alloy tube, 90x30 mm, thin wall. Industrial framing.
Welded Alloy Steel Asymmetric Profile Tube
Asymmetric noncircular welded alloy tube, irregular shape, <4 mm wall. Specialty machinery.