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HSChapter 73
U.S. imports of cast iron or steel pipe fittings (other than nonmalleable cast iron) (HS 730719) totaled $46.0M in April 2026, traded with 33 countries.
Importers of Cast Iron or Steel Pipe Fittings (Other Than Nonmalleable Cast Iron) paid $22.5M in duties in April 2026 — an effective duty rate of 51% on $44.2M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7307193040 | DUCTILE FITTINGS, GROOVED-END OF IRON/STEEL, CAST | $14.9M | 60.81% | $9.0M |
| 7307193070 | DUCTILE FITTINGS, MECH. PSH-ON/FLNGD JNTS ATTACHED | $11.6M | 45.24% | $4.7M |
| 7307199060 | TUBE/PIPE FITTINGS, THREADED, IRON OR STEEL, CAST | $8.3M | 41.45% | $3.4M |
| 7307193060 | DUCTILE FITTINGS, THREADED, OF IRON OR STEEL, CAST | $4.6M | 46.91% | $2.0M |
| 7307199080 | OTH TUBE/PIPE FITTINGS, IRON OR STEEL, CAST, NESOI | $3.0M | 59.21% | $1.7M |
| 7307193085 | DUCTILE FITTINGS, NESOI, OF IRON OR STEEL, CAST | $2.1M | 49.80% | $1.0M |
| 7307199030 | UNIONS, PIPE, OF IRON OR STEEL, CAST | $1.1M | 42.75% | $463K |
| 7307199040 | TUBE AND PIPE FITTINGS, GROOVED-END, IRON OR STEEL | $396K | 53.92% | $213K |
DUCTILE FITTINGS, GROOVED-END OF IRON/STEEL, CAST
DUCTILE FITTINGS, MECH. PSH-ON/FLNGD JNTS ATTACHED
TUBE/PIPE FITTINGS, THREADED, IRON OR STEEL, CAST
DUCTILE FITTINGS, THREADED, OF IRON OR STEEL, CAST
OTH TUBE/PIPE FITTINGS, IRON OR STEEL, CAST, NESOI
DUCTILE FITTINGS, NESOI, OF IRON OR STEEL, CAST
UNIONS, PIPE, OF IRON OR STEEL, CAST
TUBE AND PIPE FITTINGS, GROOVED-END, IRON OR STEEL
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7307199090 | OTHER CAST FITTINGS, NESOI, OF IRON OR STEEL | $14.7M |
| 7307193000 | DUCTILE FITTINGS OF IRON OR STEEL, CAST | $4.6M |
| 7307199030 | UNIONS, PIPE, OF IRON OR STEEL, CAST | $902K |
OTHER CAST FITTINGS, NESOI, OF IRON OR STEEL
1.4M kg
DUCTILE FITTINGS OF IRON OR STEEL, CAST
445.5K kg
UNIONS, PIPE, OF IRON OR STEEL, CAST
44.1K kg
TABLE, KITCHEN ETC ARTICLES & PTS, STAINLESS STEEL
HS 732393
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $9.0M | $1.7M | -$7.3M |
| Texas | $8.0M | $2.0M | -$5.9M |
| Pennsylvania | $4.6M | $4.4M | -$208K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES, CA | $13.4M | -- | -$13.4M |
| LONG BEACH, CA | $5.7M | -- | -$5.7M |
| LOW VALUE | -- | $5.5M | +$5.5M |