Seamless Steel Air Compressor Lines
Thin-walled seamless pipes of nonalloy steel for compressed air delivery in industrial compressors. With a wall thickness under 4 mm, they are classified under tariff item 7304.90.00 as seamless hollow profiles. These pipes ensure reliable and leak-free air transmission in demanding environments.
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 the pipes are cold-drawn or cold-rolled
Cold-drawn or cold-rolled seamless pipes of nonalloy steel are classified separately.
If the wall thickness is 4 mm or more
Seamless pipes with thicker walls fall under a different subheading.
If the pipes are specifically designed as parts of air compressors
Parts of air or vacuum pumps and compressors are classified under heading 84.14.
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
• Verify the pipes are seamless and have a wall thickness under 4 mm
• Provide documentation on the nonalloy steel grade and pressure ratings
• If the lines are part of a compressor system, consider whether they are classified as parts under Chapter 84
Related Products under Tariff item 7304.90.00
17-4PH Stainless Alloy Seamless Pipe (Alloy Steel Classification)
Seamless pipe made from 17-4PH precipitation-hardening stainless alloy, with wall thickness exceeding 4 mm, used in aerospace and valve body applications. Despite high chromium content, it is classified as alloy steel tube under this tariff item.
4140 Alloy Steel Seamless Round Tube for Hydraulic Cylinders
Seamless 4140 chrome-molybdenum alloy steel tube with wall thickness between 4 and 10 mm, precision bored for hydraulic cylinder barrels in heavy equipment. Classified as alloy steel seamless tube under this tariff item.
9% Nickel Alloy Steel Seamless Pipe for LNG Storage
Seamless pipe of 9% nickel alloy steel with wall thickness over 4 mm, engineered for cryogenic LNG storage tanks. The high nickel content provides toughness at extreme low temperatures, qualifying it as alloy steel seamless pipe.
Alloy Steel Seamless Boiler Tube ASTM A335 P11
Seamless boiler tube made from 1.25% chromium-molybdenum alloy steel (ASTM A335 P11 grade), designed for high-pressure boiler applications with wall thickness exceeding 4 mm. Classified as alloy steel seamless tube.
Alloy Steel Seamless Hollow Profile for Structural Supports
Seamless hollow profile of alloy steel (e.g., AISI 4140) with wall thickness of 4 mm or more, used in heavy machinery structural frames. Classified as alloy steel seamless hollow profile under this tariff item.
Alloy Steel Seamless Pipe for Oil & Gas Drilling API 5CT L80
Seamless alloy steel pipe (API 5CT L80 grade) with wall thickness of 4 mm or more, used in oil and gas well casings and tubing. The high-strength alloy construction qualifies it under this tariff item.