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Tandom

The building blocks of global trade.

hello@tandom.ai

Proud to partner with

Microsoft for Startups

NVIDIA

Inception Program

Products

  • Tariff Calculator
  • AD/CVD Intelligence
  • HTS Classification
  • Document Intelligence
  • Entry Filing
  • Excel Plugin
  • Email Plugin

Catalogs

  • AD/CVD Catalog
  • HTS Catalog
  • Pending Investigations Directory
  • Rate Change Feed

Developers

  • API
  • AI Agent Workflows
  • MCP Connector
  • API Reference
  • API Pricing
  • API Changelog

Resources

  • Resource Center
  • Guides
  • Roadmap

Company & Legal

  • About
  • Privacy Policy
  • Terms of Service
  • Acceptable Use

© 2026 Fintora Technologies, Inc. d/b/a Tandom. All rights reserved.

AD/CVD Catalog

Browse the full AD/CVD universe by HTS, case number, country, or product description.

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Type

930 orders

Page 1 of 47

AD

A-122-863

🇨🇦CA

Large Diameter Welded Pipe

Current rate

Effective

May 14, 2025

Source

FR 2019-08955

Why this rate

Case-wide rate on file: . Company-specific rates may differ — apply the lookup by entering a manufacturer or exporter on the full query page. See FR 2019-08955 for the authoritative determination.

Scope text

The merchandise covered by this order is welded carbon and alloy steel pipe (other than stainless steel pipe), more than 406.4 mm (16 inches) in nominal outside diameter (large diameter welded pipe), regardless of wall thickness, length, surface finish, grade, end finish, or stenciling. Large diameter welded pipe may be used to transport oil, gas, slurry, steam, or other fluids, liquids, or gases. It may also be used for structural purposes, including, but not limited to, piling. Specifically, not included is large diameter welded pipe produced only to specifications of the American Water Works Association (AWWA) for water and sewage pipe. Large diameter welded pipe used to transport oil, gas, or natural gas liquids is normally produced to the American Petroleum Institute (API) specification 5L. Large diameter welded pipe may also be produced to American Society for Testing and Materials (ASTM) standards A500, A252, or A53, or other relevant domestic specifications, grades and/or standards. Large diameter welded pipe can be produced to comparable foreign specifications, grades and/or standards or to proprietary specifications, grades and/or standards, or can be non-graded material. All pipe meeting the physical description set forth above is covered by the scope of this order, whether or not produced according to a particular standard. Subject merchandise also includes large diameter welded pipe that has been further processed in a third country, including but not limited to coating, painting, notching, beveling, cutting, punching, welding, or any other processing that would not otherwise remove the merchandise from the scope of the order if performed in the country of manufacture of the in-scope large diameter welded pipe.

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On this page

  • Why this rate
  • Scope text
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Directory view — shows what AD/CVD orders exist for a given HTS / country / product. For entry-specific exposure, cash-deposit amounts, and a CBP-ready scope determination PDF, use the duty calculator on the landing page.