Harmonized System
U.S. imports of Iron & Non-Stainless Steel Pipe Fittings (Other) (HS 730799) totaled $32.6M in August 2026, imported from 52 countries.
Importers of Iron & Non-Stainless Steel Pipe Fittings (Other) paid $17.8M in duties in August 2026, an average duty rate of 53.94% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataSocket-weld fittings, unions, nipples, and other pipe and tube fittings of iron and non-stainless steel that do not fall under flanges, threaded, or butt-welding categories are captured here — a residual heading that covers a wide range of industrial and commercial piping components. China is the dominant supplier, with Israel, Germany, India, and Vietnam also contributing meaningfully to US import volumes. Chinese-origin goods under this heading are subject to both Section 232 steel tariffs and Section 301 tariffs, making total landed-cost calculations particularly important for sourcing decisions. The seven 10-digit lines distinguish by alloy composition, machining/processing status, and whether the article is a nipple or another fitting type.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2.8K import shipments a month
Yes. The US schedule includes a dedicated 10-digit line for nipples of iron/nonalloy steel that have been machined, tooled, or processed (7307995015), distinct from the broader residual line for other machined fittings (7307995045). Correct identification of the article type is necessary to avoid misclassification.
China leads supply under this heading, but Section 301 tariffs add a significant cost layer on top of the base duty and Section 232 tariffs. Many importers have responded by qualifying alternative suppliers in India or Vietnam, though they must ensure those suppliers' goods genuinely originate in the declared country to avoid transshipment scrutiny.
Subheading 4 of 10 in heading 7307
Subheading 730799 · $32.6M of $280.0M
Trade Directory
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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 |
|---|---|---|---|---|---|
| 7307995045 | Oth Tube/Pipe Fitt NESOI I/Nal Stl Mach, Tld, Proc | $20.2M | 52.01% | 99.86% | $10.5M |
| 7307995060 | Oth Pipe Fittings Nes Al St Ex Stnls Machnd Tld Et | $6.8M | 54.54% | 99.60% | $3.7M |
| 7307995015 | Nipples, Pipe and Tube I/Nal Steel Mach, Tld, Proc | $4.2M | 60.73% | 99.95% | $2.6M |
| 7307991000 | Other Pipe Fittings Nes Irn/Nal Stl Nt Machnd Etc | $1.5M | 58.42% | 100.00% | $887K |
| 7307993000 | Oth Pipe Fittings Nes Al St Ex Stnls Nt Machnd Etc | $379K | 52.57% | 99.32% | $199K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7307992000 | Other Fittings NESOI of Iron or Nonalloy Steel | $16.1M |
| 7307994000 | Other Fittings NESOI of Alloy Steel not Stainless | $15.2M |
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
China pays 78.1% duty; South Korea 48.6%.
customs district
destination
entry
rate provision · imports
0.2% enters free of duty; duty collected equals 53.94% of imports for consumption.
ImportsExports
Imports
$32.6MYoY · free account
Exports
$31.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $365.0M of Iron & Non-Stainless Steel Pipe Fittings (Other) and exported $373.6M.
Through August 2026. Source: U.S. Census Bureau.