HS Code for Steel gas tanks

The classification of steel gas tanks under HS code 7311.00 covers containers specifically designed for the storage and transport of compressed or liquefied gas. Unlike standard storage tanks for liquids or solids, these containers are engineered to withstand high internal pressures. They are made of iron or steel and are subject to stringent manufacturing standards to ensure safety. This heading includes a wide variety of products, from small, portable cylinders used for medical oxygen or camping fuel to large industrial tanks used for nitrogen, argon, or liquefied petroleum gas (LPG). The containers can be seamless (often used for very high pressures) or welded. The classification applies regardless of the container's volume, which distinguishes it from the liquid containers in 7309 and 7310 that are classified based on capacity. It is also important to note that the container must be made of iron or steel; aluminum or composite cylinders are classified elsewhere. These articles are often referred to as "pressure vessels." Because gas containers are high-risk items, they are often subject to additional national regulations and safety certifications beyond the standard customs classification, though the HS code remains the primary identifier for international trade. The code covers both the cylinder body and any permanently attached valves or protective caps.

Products Included

• Steel oxygen cylinders
• LPG (Liquefied Petroleum Gas) tanks
• Compressed air bottles for industrial use
• High-pressure steel flasks for specialty gases

Common Misclassification

Non-pressurized steel containers for liquids are classified under 7310.10. Large stationary reservoirs for liquids with a capacity over 300L are under 7309.00. Aluminum gas cylinders are classified under 7613.00.

FAQ

What is the HS code for Steel gas tanks?

The HS code for iron or steel containers for compressed or liquefied gas is 7311.00.

Does this code include the gas inside the tank?

Generally, the gas is classified separately under its own chemical HS code (Chapter 28 or 27), while the tank is classified under 7311.00.