DOT 3AX Steel Diving Tank
Seamless steel high-pressure tank marked DOT 3AX for scuba diving air storage, without overwrap. Certified per 49 CFR 178 for extreme pressure resistance in recreational and professional diving. Typically 80 cubic feet capacity.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If overwrapped for corrosion protection
Protective overwrap excludes from this seamless non-overwrapped category.
If imported in bulk as unfinished tubes
Seamless steel tubes before forming into certified containers fall under tubes/pipes heading.
If part of a bicycle safety kit with frame mount
Sold as bicycle accessory set may shift to parts of cycles under Chapter 87.
Not sure which classification is right?
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Import Tips & Compliance
• Require third-party visual inspection reports for used cylinders to avoid retest issues
• Label cylinders individually with HTS code and DOT specs to speed customs clearance
Related Products under HTS 7311.00.00.30
DOT 3A Seamless Steel Gas Cylinder
A seamless steel cylinder certified under DOT 3A specifications for compressed gases, marked accordingly and not overwrapped. It complies with 49 CFR 178.36 safety requirements for high-pressure gas storage and transport. Used for industrial gases like oxygen or nitrogen.
DOT 3AA Seamless Steel Oxygen Cylinder
High-strength seamless steel cylinder marked DOT 3AA for medical or industrial oxygen storage, not overwrapped. Meets DOT safety standards under 49 CFR for pressures up to 1800 psi. Essential for welding, healthcare, and diving applications.
DOT 3B Seamless Steel Helium Balloon Cylinder
Seamless steel cylinder marked DOT 3B for helium party balloons or blimps, without overwrap. Complies with 49 CFR safety for lighter-than-air gas containment. Portable size for event use.
DOT 3E Small Steel Paintball Tank
Compact seamless steel tank marked DOT 3E for paintball markers, not overwrapped. Meets DOT specs for 3000 psi compressed air. Lightweight for sports and recreational use.
DOT 3HT Hydrogen Fuel Cylinder
Heat-treated seamless steel cylinder marked DOT 3HT for hydrogen fuel cells or storage, no overwrap. Designed for ultra-high pressures per 49 CFR. Used in automotive and energy applications.
DOT 3T Thick-Wall Steel Gas Bottle
Thick-walled seamless steel bottle marked DOT 3T for specialty compressed gases, unwrapped. High-strength per CFR for corrosive or reactive gases. Industrial lab use.