Alloy Steel Hydraulic Cylinder Tube
Seamless or welded tube made from alloy steel, precision-honed on the interior for use in hydraulic and pneumatic cylinders. It falls under HTS 7306.90.5000 as other tubes of alloy steel, not specified elsewhere in heading 7306. Typical dimensions include outer diameters from 50-300mm with wall thicknesses up to 10mm.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless and over 406.4mm OD
Seamless tubes of alloy steel exceeding 16 inches OD classify under tubes for drilling, not general other tubes.
If made of stainless steel
Stainless alloy steel variants shift to specific stainless steel tube subheading based on material definition.
If imported as part of complete hydraulic cylinder
Assembled cylinders classify as machinery parts, not raw tubes/pipes.
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
• Verify alloy steel composition meets ASTM A519 or equivalent standards; provide mill test certificates for customs valuation
• Ensure tubes are declared as 'other' profiles if not seamless line pipe or casing to avoid misclassification
Related Products under HTS 7306.90.50.00
Welded Alloy Steel Square Hollow Section
ERW welded square hollow structural section (HSS) from alloy steel grades like A500 or A513, used in construction frameworks and machine bases. Fits 7306.90.5000 as other hollow profiles of alloy steel, distinct from circular pipes.
Chrome-Moly P91 Alloy Boiler Tube
High-temperature P91 (9Cr-1Mo) alloy steel tube for supercritical boiler superheaters and reheaters. Classifies in 7306.90.5000 as other alloy steel tubes, excluding line pipe or casing applications.
17-4PH Stainless Alloy Steel Hollow Bar
Precipitation-hardened 17-4PH stainless alloy steel hollow bar, machined from tube for valve bodies and pump shafts. 7306.90.5000 covers this as other alloy steel hollow profiles with wire dimensions under 16mm max.
Alloy Steel Scaffolding Pipe Adapter Tube
Short adapter tubes from high-strength alloy steel connecting standard scaffolding pipes. Classified 7306.90.5000 as other welded alloy steel tubes for construction equipment.
Nitrided Alloy Steel Mandrel Bar Tube
Surface-nitrided 4340 alloy steel hollow mandrel bars used in tube drawing operations. 7306.90.5000 for specialized alloy steel hollow profiles in metalworking.
High-Pressure Alloy Steel Accumulator Shell
Cylindrical shells from 4340 or 300M alloy steel for hydraulic accumulators storing pressurized fluid. 7306.90.5000 applies to these welded or seamless pressure vessels under tube dimensions.