The HS code—short for Harmonized Commodity Description and Coding System—is a globally standardized system for classifying traded products. It was developed by the World Customs Organization (WCO) to facilitate international trade and streamline customs procedures. The code is made up of six digits, structured as follows:
First 2 digits: Indicate the general category of goods
Digits 3–4: Define the subcategory
Digits 5–6: Specify the detailed item within that category
HS Code for Precision Steel Tubes
The appropriate HS code for precision steel tubes depends on several factors, including the tube’s material, intended use, production method, and specifications. Below are commonly used HS codes for seamless precision tubes, typically classified based on their manufacturing process:
Classification |
HS Code |
Description |
Application |
Seamless precision tube |
|
||
Carbon steel seamless pipe |
7304.19 |
Outer diameter ≤ 406.4mm, non-boiler/geological use |
Cold drawn/cold rolled carbon steel pipe (machine parts) |
Alloy steel seamless pipe |
7304.29 |
Outer diameter ≤ 406.4mm, non-boiler/geological use |
Precision alloy steel pipe for automobiles |
Stainless steel seamless pipe |
7304.41 |
Outer diameter ≤ 406.4mm |
Food grade/medical equipment stainless steel pipe |
Other alloy steel seamless pipe |
7304.49 |
Special alloy material, outer diameter ≤ 406.4mm |
High corrosion resistant industrial pipe |
Welded precision tube |
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||
Longitudinal submerged arc welded carbon steel pipe |
7305.31 |
Outer diameter > 406.4mm, high pressure use |
Oil and gas transmission pipeline |
Other welded cold drawn/cold rolled pipe |
7306.30 |
Outer diameter ≤ 406.4mm |
Precision instrument thin-walled welded pipe |
Notes
Specifications Affect Classification
Key product details such as outer diameter, wall thickness, and processing method (e.g., cold drawing or hot rolling) can influence the sub-classification of precision steel tubes.
For example, tubes with an outer diameter exceeding 406.4 mm may fall under different subheadings like 7304.19 or 7304.23.
Clarify Intended Use
It is essential to specify whether the tube is intended for special applications such as boiler tubes, oil and gas pipelines, or other specific fields, as the usage may affect the correct HS classification.
Country-Specific Variations
Many countries add national extensions to the standard 6-digit HS code. For example, China uses a 10-digit customs code for more detailed product classification and tax control.
Purpose of the Customs Code for Precision Tubes
The customs code plays a critical role in international trade and serves several important purposes:
Customs Declaration
Each product traded internationally must have a designated customs code. This facilitates accurate customs declaration, clearance, and tax management.
Precision steel tubes are generally classified under HS code 7304, which must be included in import/export documentation to ensure regulatory compliance.
Tax Management
Customs authorities rely on the customs code to determine applicable duties and taxes. Different codes are associated with different tariff rates, making accurate classification essential to avoid underpayment or overpayment.
Trade Statistics and Analysis
Beyond customs clearance, customs codes enable detailed trade data analysis. By tracking imports and exports by code, governments and businesses can assess trade volume, structure, and trends, helping shape policy and business strategy.
Summary
In cross-border trade, accurate classification and use of the correct customs code for precision steel tubes help prevent clearance delays, reduce tax risks, and ensure smooth and efficient business operations.