Historical MFN averages (2023); not current shipment rates. HS6 descriptions use the UN Comtrade Combined HS reference; the original rate nomenclature remains unconfirmed. National special codes require destination-specific verification. No effective date is available. The data review on September 11, 2026 does not update the rates. Reference source.

Nigeria Customs Tariff for HS Code 730590

Iron or steel (excluding cast iron); tubes and pipes n.e.c. in heading no. 7305, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)

WITS 2023 historical MFN average

Reported average: 15%.

Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.

National lines included: 2 of 2. Excluded from the average: 0.

Reported ad-valorem range: 10%โ€“20%.

Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.

Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.

WITS observation for this code and year

UN Comtrade H6 descriptions (HS 2022)

WITS API definitions: reported averages and excluded national lines

Direct HS code answer for Nigeria

Nigeria HS Code 730590: 15.00% (2023 MFN average)

The source reports an indicative HS6 MFN average of 15.00% (2023 MFN average) for Iron or steel (excluding cast iron); tubes and pipes n.e.c. in heading no. 7305, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless).Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.

Customs tariff summary

Country
Nigeria
HS / tariff code
730590
Description
Iron or steel (excluding cast iron); tubes and pipes n.e.c. in heading no. 7305, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)
Chapter
73 โ€”
Heading
7305
Subheading
730590
Indicative MFN HS6 average
15.00% (2023 MFN average)
VAT / tax
Check local VAT and excise rules for the import destination.
Unit / basis
Not listed in this tariff line
Source / vintage
WITS / UNCTAD TRAINS โ€” 2023 MFN HS6 reference

Historical MFN average

15.00% (2023 MFN average)

Import permission

not assessed

Import planning

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Details

HS Code
730590
Chapter
73 โ€”
Heading
7305
Subheading
730590

Compare HS code 730590 across GCC countries

Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.

Related HS Codes (Heading 7305)

HS CodeDescriptionDuty
730511Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), longitudinally submerged arc welded, having circular cross-sections, external diameter exceeds 406.4mm10.00% (2023 MFN average)WITS 2023 historical MFN average
730512Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), longitudinally welded (not submerged arc welded), having circular cross-sections, external diameter exceeds 406.4mm5.00% (2023 MFN average)WITS 2023 historical MFN average
730519Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm5.00% (2023 MFN average)WITS 2023 historical MFN average
730520Iron or steel (excluding cast iron); casing of a kind used in drilling for oil or gas (not seamless), having circular cross-sections, external diameter exceeds 406.4mm5.00% (2023 MFN average)WITS 2023 historical MFN average
730531Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), longitudinally welded, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)15.00% (2023 MFN average)WITS 2023 historical MFN average
730539Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), welded (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)15.00% (2023 MFN average)WITS 2023 historical MFN average

Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.