Alloy Steel Guardrail Post Tube
Welded heavy gauge alloy steel tube for highway guardrail posts, circular 2.25-inch, wall 0.165-inch (>1.65 mm metric), crash-tested. Classified HTS 7306.50.50 as other thick welded alloy tubes.
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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 fabricated with base plates into posts
Finished guardrail posts are structures under 7308.
If carbon steel standard grade
Most guardrails use carbon steel; alloy for corrosive areas.
If flanged or with threaded ends
Fittings dominate if ends are mechanically joined.
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Import Tips & Compliance
• AASHTO M180 crash test compliance docs essential for DOT acceptance
• Galvanized coating weight per ASTM A123 specified in commercial invoice
• Length standardization (10ft nominal) affects freight class but not HTS
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