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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.

Need exposure for a specific shipment? Use the calculator→
Type

930 orders

Page 1 of 47

AD

A-201-847

🇲🇽MX

Heavy Walled Rectangular Welded Carbon Steel Pipes and Tubes

Current rate

Effective

Apr 1, 2022

Source

FR 2016-22003

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 2016-22003 for the authoritative determination.

Scope text

The merchandise covered by these orders is certain heavy walled rectangular welded steel pipes and tubes of rectangular (including square) cross section, having a nominal wall thickness of not less than 4 mm. The merchandise includes, but is not limited to, the American Society for Testing and Materials (ASTM) A-500, grade B specifications, or comparable domestic or foreign specifications. Included products are those in which: (1) Iron predominates, by weight, over each of the other contained elements; (2) the carbon content is 2 percent or less, by weight; and (3) none of the elements below exceeds the quantity, by weight, respectively indicated: 2.50 percent of manganese, or 3.30 percent of silicon, or 1.50 percent of copper, or 1.50 percent of aluminum, or 1.25 percent of chromium, or 0.30 percent of cobalt, or 0.40 percent of lead, or 2.0 percent of nickel, or 0.30 percent of tungsten, or 0.80 percent of molybdenum, or 0.10 percent of niobium (also called columbium), or 0.30 percent of vanadium, or 0.30 percent of zirconium.

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Prior scope rulings, case lifecycle, rate history, and the manufacturer directory are available to every signed-in user — free forever, no credit card.

On this page

  • Why this rate
  • Scope text
  • Case history 🔒

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.