U.S. imports of Cast Pipe Fittings of Nonmalleable Cast Iron (HS 730711) totaled $2.8M in September 2026, imported from 29 countries.
Importers of Cast Pipe Fittings of Nonmalleable Cast Iron paid $530K in duties in September 2026, an average duty rate of 18.51% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: September 2026 dataNonmalleable (gray) cast iron fittings are brittle relative to ductile iron and are therefore confined to low-pressure, non-impact applications such as threaded drainage fittings and cast-iron soil pipe systems. The US schedule separates fittings for threaded pipe (7307110030), fittings for cast-iron soil pipe (7307110045), and all other nonmalleable cast iron fittings (7307110060). India leads US supply under this heading, followed by China. Both leading sources are subject to Section 232 tariffs, and antidumping or countervailing duty orders on cast iron pipe fittings from certain origins have historically been in force — importers should verify current AD/CVD scope before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
247 import shipments a month
Nonmalleable (gray) cast iron has a flake graphite microstructure, is brittle, and cannot be bent without fracturing. Ductile (nodular) iron has a spheroidal graphite structure, is impact-resistant, and is used in pressure pipe systems. Material certification from the manufacturer identifying the iron grade (e.g., ASTM A126 for gray iron vs. ASTM A536 for ductile iron) is the standard documentation for classification purposes.
AD/CVD orders on cast iron pipe fittings from certain countries have been in place for many years and have been subject to periodic sunset reviews. Importers should check the current scope of any applicable orders with the Department of Commerce and confirm with a licensed customs broker before filing entry, as scope and rates can change following administrative reviews.
Subheading 10 of 10 in heading 7307
Subheading 730711 · $2.8M of $280.0M
ImportsExports
Imports
$2.8MYoY · free account
Exports
$2.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to September 2026, the U.S. imported $30.7M of Cast Pipe Fittings of Nonmalleable Cast Iron and exported $29.3M.
Through September 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 730711 — Cast Pipe Fittings of Nonmalleable Cast Iron, so the companies trading it can find you. Be the first supplier listed.
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 |
|---|---|---|---|---|---|
| 7307110060 | Cast Fittings of Nonmalleable Cast Iron NESOI | $1.6M | 18.19% | 72.33% | $299K |
| 7307110030 | Fittings, Nonmalble Cast Iron for Threaded Pipe | $579K | 18.00% | 87.18% | $104K |
| 7307110045 | Fittings Nonmalble Cast-Irn for Cst-Iron Soil Pipe | $183K | 15.40% | 87.86% | $28K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7307110060 | Cast Fittings of Nonmalleable Cast Iron NESOI | $1.5M |
| 7307110030 | Fittings, Nonmalble Cast Iron for Threaded Pipe | $896K |
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 · September 2026
origin
India and China together supply 55% of it. China pays 42.3% duty; Canada 0.2%.
customs district
destination
entry
rate provision · imports
20.7% enters free of duty; duty collected equals 18.51% of imports for consumption.