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U.S. imports of cast iron or steel pipe fittings (other than nonmalleable cast iron) (HS 730719) totaled $50.8M in July 2026, traded with 38 countries.
Importers of Cast Iron or Steel Pipe Fittings (Other Than Nonmalleable Cast Iron) paid $19.4M in duties in July 2026 — an effective duty rate of 41% on $47.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataDuctile iron and other cast steel fittings — including grooved-end, threaded, flanged, and push-on joint configurations — serve water main, fire protection, and industrial piping systems where impact resistance and pressure ratings matter. The US tariff schedule is unusually granular here, with dedicated lines for grooved-end ductile fittings (7307193040), threaded ductile fittings (7307193060), mechanical push-on/flanged joint fittings (7307193070), grooved-end non-ductile cast fittings (7307199040), and threaded cast fittings (7307199060). China leads supply, followed by India and Thailand. Both China-origin and India-origin cast fittings may be subject to Section 232 tariffs and, depending on product type, antidumping or countervailing duty orders.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2.9K shipments/mo
CBP expects commercial invoices and manufacturer specifications that identify the joint type (grooved-end per AWWA C606 or ASTM standards, versus NPT or other threaded standards) and confirm the iron grade as ductile (nodular). Misidentifying the joint type can result in misclassification between 7307193040 (grooved-end ductile) and 7307193060 (threaded ductile), which carry different statistical reporting and potentially different AD/CVD exposure.
The granularity reflects both trade-remedy history and domestic industry petitions: grooved-end, threaded, and flanged fittings serve distinct end-use markets and have been subject to separate antidumping investigations at various times. Separate statistical lines allow CBP and Commerce to monitor import volumes by product type for AD/CVD enforcement and injury analysis purposes.
HSChapter 73
Subheading 1 of 10 in heading 7307
Subheading 730719 · $50.8M of $267.9M
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7307193040 | Ductile Fittings, Grooved-End of Iron/Steel, Cast | $20.4M | 48.13% | 94.94% | $9.8M |
| 7307193070 | Ductile Fittings, Mech. Psh-on/Flngd Jnts Attached | $12.8M | 22.22% | 83.10% | $2.8M |
| 7307199060 | Tube/Pipe Fittings, Threaded, Iron or Steel, Cast | $7.9M | 33.89% | 98.31% | $2.7M |
| 7307193060 | Ductile Fittings, Threaded, Of Iron or Steel, Cast | $3.4M | 32.80% | 91.05% | $1.1M |
| 7307199080 | Oth Tube/Pipe Fittings, Iron or Steel, Cast, NESOI | $2.3M | 57.64% | 96.37% | $1.3M |
| 7307193085 | Ductile Fittings, NESOI, Of Iron or Steel, Cast | $2.2M | 35.87% | 96.76% | $777K |
| 7307199030 | Unions, Pipe, Of Iron or Steel, Cast | $1.4M | 40.30% | 97.99% | $554K |
| 7307199040 | Tube and Pipe Fittings, Grooved-End, Iron or Steel | $424K | 54.83% | 100.00% | $233K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7307199090 | Other Cast Fittings, NESOI, Of Iron or Steel | $16.7M |
| 7307193000 | Ductile Fittings of Iron or Steel, Cast | $5.8M |
| 7307199030 | Unions, Pipe, Of Iron or Steel, Cast | $788K |
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.
ImportsExports
Imports
$50.8MYoY · Pro
Exports
$23.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
China and India together supply 60% of it.
customs district
destination
entry
rate provision · imports
7.5% enters free of duty; the effective duty rate is 38.13%.