{
  "summary": "The United States tariff splits HS 7304.39 (other, of circular cross-section, of iron or non-alloy steel: Other) into 20 national lines: 7304.39.00.02 (having an outside diameter less than 38.1 mm), 7304.39.00.04 (having an outside diameter of 38.1 mm or more but less than 190.5 mm), 7304.39.00.06 (having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm), 7304.39.00.08 (having an outside diameter exceeding 285.8 mm) and 16 others. Every United States line under 7304.39 is free of general (MFN) duty.",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "HS subheading",
      "value": "7304.39",
      "source": null,
      "url": "https://border.bot/hs-codes/730439"
    },
    {
      "label": "Duty (MFN)",
      "value": "Free",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "National lines",
      "value": "20",
      "source": null
    },
    {
      "label": "Tariff",
      "value": "United States",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false",
      "url": "https://border.bot/countries/united-states"
    },
    {
      "label": "Chapter",
      "value": "73: Articles of iron or steel",
      "source": null
    }
  ],
  "faq": [
    {
      "question": "How many national tariff lines does the United States tariff have under HS 7304.39?",
      "answer": "The United States tariff splits HS 7304.39 (other, of circular cross-section, of iron or non-alloy steel: Other) into 20 national lines: 7304.39.00.02 (having an outside diameter less than 38.1 mm), 7304.39.00.04 (having an outside diameter of 38.1 mm or more but less than 190.5 mm), 7304.39.00.06 (having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm), 7304.39.00.08 (having an outside diameter exceeding 285.8 mm) and 16 others."
    },
    {
      "question": "What is the duty on HS 7304.39 in the United States?",
      "answer": "Every United States line under 7304.39 is free of general (MFN) duty."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "United States lines under 7304.39",
      "text": [
        "The United States tariff splits HS 7304.39 (other, of circular cross-section, of iron or non-alloy steel: Other) into 20 national lines: 7304.39.00.02 (having an outside diameter less than 38.1 mm), 7304.39.00.04 (having an outside diameter of 38.1 mm or more but less than 190.5 mm), 7304.39.00.06 (having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm), 7304.39.00.08 (having an outside diameter exceeding 285.8 mm) and 16 others.",
        "Every United States line under 7304.39 is free of general (MFN) duty."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 7304.39 yet."
      ]
    },
    {
      "id": "sources",
      "title": "Sources and updates",
      "text": [
        "The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "This page was last updated on 9 October 2026.",
        "Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling."
      ]
    }
  ],
  "data": {
    "type": "country-subheading",
    "country": {
      "code": "US",
      "name": "United States",
      "slug": "united-states"
    },
    "schedule": {
      "code": "US",
      "name": "United States",
      "slug": "united-states"
    },
    "borrowed": false,
    "localTaxes": [],
    "localDeminimis": [],
    "ratesLive": true,
    "provenance": [
      {
        "dataset": "US:hs",
        "country": "US",
        "kind": "hs",
        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:50.043Z",
        "origin": "source",
        "sourceUrls": [
          "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
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      },
      {
        "dataset": "US:rates",
        "country": "US",
        "kind": "rates",
        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:36.287Z",
        "origin": "source",
        "sourceUrls": [
          "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
        ]
      },
      {
        "dataset": "US:programmes",
        "country": "US",
        "kind": "programmes",
        "seq": 1,
        "version": "2026HTSRev21",
        "liveAt": "2026-10-09T21:15:58.040Z",
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        "sourceUrls": [
          "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
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    ],
    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "73",
      "description": "Articles of iron or steel"
    },
    "heading": {
      "code": "7304",
      "description": "Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel"
    },
    "subheading": {
      "code": "730439",
      "description": "Other, of circular cross-section, of iron or non-alloy steel: Other"
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        "code": "7304390002",
        "description": "Having an outside diameter less than 38.1 mm",
        "levels": [
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          "Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters",
          "Having an outside diameter less than 38.1 mm"
        ],
        "english": null,
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        "general": {
          "code": "73043900",
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          "Other",
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