EN24 Alloy Steel Mechanical Tubing
Seamless EN24 (4340 equivalent) alloy steel tubing for machinery shafts, 178 mm OD, 8 mm wall. HTS 7304.59.80.30 applies to these 'other' circular seamless alloy steel hollow profiles.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter 190.5-304.8 mm
Same alloy/seamless but larger OD uses sequential statistical suffix.
If machined into finished transmission shaft
Advanced manufacture into specific transmission parts shifts to 8483.
If threaded or fitted with couplings
Tube fittings with threads classify under 7307 as pipe fittings.
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
• EN/DIN material cert mandatory; US buyers convert to AISI equivalent for specs
• Normalize heat treatment docs to prove strength properties without welds
Related Products under HTS 7304.59.80.30
SAE 4130 Seamless Alloy Steel Pipe
A seamless pipe made from 4130 chrome-moly alloy steel with circular cross section, outside diameter of 152.4 mm, and wall thickness of 10 mm. Classified under HTS 7304.59.80.30 due to its alloy steel composition, seamless construction, OD between 114.3-190.5 mm, and thin wall less than 12.7 mm.
AISI 4140 Chrome-Moly Hollow Bar
Seamless hollow profile of 4140 alloy steel used as mechanical tubing, 165 mm OD, 9.5 mm wall thickness. Fits HTS 7304.59.80.30 as 'hollow profiles, seamless, of other alloy steel' with specified circular dimensions and thin wall.
15CDV6 Aerospace Alloy Steel Tube
High-strength seamless tube from 15CDV6 alloy steel for aircraft structures, 140 mm OD, 11 mm wall. Under HTS 7304.59.80.30 for seamless alloy steel tubes with OD 114.3-190.5 mm and wall <12.7 mm.
8630 Alloy Steel Drill Pipe Riser
Seamless 8630 alloy steel riser section for oil drilling, 152 mm OD, 10.2 mm wall thickness. Classifies in HTS 7304.59.80.30 as other seamless alloy steel tubes meeting size criteria.
HY-80 Alloy Steel Pressure Tube
High-yield HY-80 nickel-chrome-moly alloy steel seamless tube for submarine pressure hulls, 160 mm OD, 11.5 mm wall. Fits HTS 7304.59.80.30 specifications exactly.
300M Alloy Steel Landing Gear Tube
Ultra-high strength 300M (4340 variant) seamless alloy tube for aircraft landing gear struts, 145 mm OD, 9.8 mm wall thickness. HTS 7304.59.80.30 for alloy seamless tubes in size range.