China HS Code

HS Code 730621: Casing and tubing of a kind used in drilling for oil or gas : Welded, of stainless steel in China

Q: Is HS code 730621 the same across all countries?

Yes — up to the 6-digit level, HS code 730621 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. China extends it under China HS / CCCHS.

Q: What system does China use to classify HS code 730621?

China classifies products under the Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS; locally 中华人民共和国海关进出口税则), which extends HS codes to 13 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 730621 in China?

The official source is http://english.customs.gov.cn/. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 730621 in China

Under China's Customs Import and Export Tariff of the People's Republic of China (中华人民共和国海关进出口税则), HS Code 730621 is the WCO Harmonized System subheading for Casing and tubing of a kind used in drilling for oil or gas : Welded, of stainless steel. This is the most detailed internationally standardized level; China extends classifications to 13 digits under its national tariff system. 730621 belongs to Section XV: Base metals and articles of base metal, Chapter 73: Articles of iron or steel, Heading 7306: Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel.

Explore more 2026 Latest China import export trade data and shipment records for HS Code Welded Stainless Casing Tubing on TradeInt global trade data platform

Classification Path of HS Code 730621 in China

Section XV

Chapters (72-83) Base metals and articles of base metal

Chapter 73

Articles of iron or steel

HS Code 7306

Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel

HS Code 730621

Casing and tubing of a kind used in drilling for oil or gas : Welded, of stainless steel

HS Code 73062100

Casing & tubing,welded,stainless,for use in drilling for oil/gas 不锈钢制钻探石油或天然气用套管及导管

China Tariff Classification: Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS)

In China, HS 730621 is classified under the Customs Import and Export Tariff of the People's Republic of China (中华人民共和国海关进出口税则) — a 13-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS)

Local name 中华人民共和国海关进出口税则

Digits 13

Official source http://english.customs.gov.cn/

You know what 730621 means. Now see 2026 latest real trade activity for Welded Stainless Casing Tubing in China.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

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Top Trading Product of HS Code 7306

Top China import Product Under HS Code 7306

1 730640: Other, welded, of circular crosssection, of stainless steel $68.0M 2 730630: Other, welded, of circular crosssection, of iron or nonalloy steel $66.4M 3 730650: Other, welded, of circular crosssection, of other alloy steel $18.1M

Figures shown for 2025.

For more 2026 recent data, search for China import trade records

Top China export Product Under HS Code 7306

1 730630: Other, welded, of circular crosssection, of iron or nonalloy steel $1.3B 2 730661: Other, welded, of noncircular crosssection : Of square or rectangular crosssection $1.2B 3 730640: Other, welded, of circular crosssection, of stainless steel $450.3M

Figures shown for 2025.

For more 2026 recent data, search for China export trade records

Related HS Code to China Welded Stainless Casing Tubing (730621)

HS Code 73062100

Casing & tubing,welded,stainless,for use in drilling for oil/gas

HS Code 730611

Line pipe of a kind used for oil or gas pipelines : Welded, of stainless steel

HS Code 730619

Line pipe of a kind used for oil or gas pipelines : Other

HS Code 730629

Casing and tubing of a kind used in drilling for oil or gas : Other

HS Code 730630

Other, welded, of circular crosssection, of iron or nonalloy steel

HS Code 730640

Other, welded, of circular crosssection, of stainless steel

HS Code 730650

Other, welded, of circular crosssection, of other alloy steel

HS Code 730661

Other, welded, of noncircular crosssection : Of square or rectangular crosssection

HS Code 730669

Other, welded, of noncircular crosssection : Of other noncircular crosssection

HS Code 730690

Other

Frequently Asked Questions

What is HS code 730621 in China?

HS code 730621 covers Casing and tubing of a kind used in drilling for oil or gas : Welded, of stainless steel in China. It sits in Chapter 73 (Articles of iron or steel), Heading 7306 of the Harmonized System, and is classified under China HS / CCCHS.

Is HS code 730621 the same across all countries?

What system does China use to classify HS code 730621?

Where can I officially look up HS code 730621 in China?