Alloy Steel Guardrail Post Tube
Heavy-gauge welded alloy steel tube with a circular cross-section, 2.25-inch outer diameter and wall thickness exceeding 1.65 mm. Used for highway guardrail posts, it is crash-tested to meet road safety standards. Classified under 7306.50.00 as welded tubing of other alloy steel.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 imported as part of a prefabricated guardrail system
Structures and parts of structures of iron or steel are classified under heading 7308.
If the tube is seamless rather than welded
Seamless tubes of other alloy steel are classified under 7304, not 7306.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the tube meets Canadian Highway Bridge Design Code or provincial guardrail standards
• Include documentation showing crash-test certification
• Verify the alloy steel composition to avoid misclassification under carbon steel headings
Related Products under Tariff item 7306.50.00
Alloy Steel Exhaust Tubing 3-inch OD
Welded circular tubing made from heat-resistant alloy steel, with a 3-inch outer diameter and a wall thickness of at least 1.65 mm. Designed for automotive and industrial exhaust systems, it withstands high temperatures and corrosive gases. This product qualifies under tariff item 7306.50.00 as welded tubing of circular cross-section made from alloy steel other than stainless.
Alloy Steel Heat Exchanger Tubing
Welded circular tubes of corrosion-resistant alloy steel with a wall thickness of 1.8 mm, used in shell-and-tube heat exchangers for chemical processing. The tubes transfer heat between fluids while resisting corrosive media. Classified under 7306.50.00 as welded tubing of circular cross-section of other alloy steel.
Alloy Steel Roll Cage Tubing 1.75-inch
Welded 4130 alloy steel tubing with a 1.75-inch outer diameter and 0.120-inch wall thickness, designed for off-road vehicle roll cages. The tubing is NHRA certified for motorsport safety and provides high strength-to-weight ratio. Classified under 7306.50.00 as welded circular tubing of other alloy steel.
Alloy Steel Spotlight Cone Tube
A tapered welded tube made of alloy steel with a wall thickness of at least 1.65 mm, shaped as a conical housing for high-intensity spotlights in architectural lighting. The taper directs the light beam and mounts the bulb assembly, and its welded circular cross-section and alloy composition place it under tariff item 7306.50.00.
Alloy Steel Structural Hollow Section 4x4 inch
A welded square hollow profile of alloy steel, standardized as 4x4 inches with a wall thickness exceeding 1.65 mm. Used in construction frameworks and machinery supports, it offers structural strength and durability. Classified under 7306.50.00 as welded tubing of other alloy steel, despite its square shape, because the tariff item covers tubes and hollow profiles of circular cross-section only—this product is included as it is a welded hollow profile of alloy steel.
Alloy Steel Uplight Extension Tube
A welded, tapered tube of alloy steel with walls at least 1.65 mm thick, used as a height extension for in-ground uplighting in landscape architecture. The conical design diffuses light upward while grounding securely, and its welded circular construction and alloy steel composition fall under tariff item 7306.50.00.