U.S. imports of Stainless Steel Pipe & Tube Flanges (HS 730721) totaled $22.5M in August 2026, imported from 45 countries.
Importers of Stainless Steel Pipe & Tube Flanges paid $12.6M in duties in August 2026, an average duty rate of 55.70% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataStainless steel flanges are precision-machined or forged connection components used in chemical processing, pharmaceutical, food-grade, and high-purity piping systems where corrosion resistance is essential. The US schedule distinguishes flanges that have not been machined, tooled, or otherwise processed (7307211000) from those that have undergone such finishing (7307215000) — a distinction that affects both classification and value. India is the dominant supplier of stainless steel flanges to the US market, with Italy and Vietnam also significant sources. Section 232 tariffs apply, and importers sourcing from India should confirm whether any applicable trade-remedy orders are in scope.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.2K import shipments a month
7307211000 covers flanges in an as-forged, as-cast, or rough-formed state without subsequent machining or tooling. Once a flange has been faced, bored, drilled for bolt holes, or otherwise dimensionally finished to a pressure-class standard (such as ASME B16.5), it falls under 7307215000. Importers should obtain mill or manufacturer certifications confirming the processing state at time of export.
India has developed a concentrated forging and machining industry in cities like Ahmedabad and Mumbai that produces ASME/ANSI-compliant stainless flanges at competitive cost. Large integrated facilities capable of forging, heat-treating, and finish-machining in one location give Indian producers a lead-time and price advantage that has made them the primary source for US industrial buyers.
Subheading 7 of 10 in heading 7307
Subheading 730721 · $22.5M of $280.0M
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ImportsExports
Imports
$22.5MYoY · free account
Exports
$8.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $232.5M of Stainless Steel Pipe & Tube Flanges and exported $95.3M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7307215000 | Stainless Steel Flanges, Machnd, Toold or Processd | $21.8M | 55.78% | 99.77% | $12.1M |
| 7307211000 | Stainless Steel Flanges, Nt Machnd, Toold or Procs | $923K | 53.84% | 100.00% | $497K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7307210000 | Stainless Steel Flanges | $8.8M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
India and Italy together supply 54% of it. China pays 74.7% duty; South Korea 50.4%.
customs district
destination
entry
rate provision · imports
0.2% enters free of duty; duty collected equals 55.70% of imports for consumption.