Analysis
HTS 7226.91.05 covers of chipper knife steel under heading 7226 (flat-rolled products of other alloy steel, of a width of less than 600 mm).
Goods from countries without normal trade relations pay the column 2 rate of 34% instead of nothing, so origin decides between free entry and a 34% duty.
The normal trade relations rate here is zero, shared by about 92% of the 262 tariff lines in chapter 72, a useful check when a neighbouring dutiable line is a candidate. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
Census statistics map these goods to NAICS 331110 (Iron and Steel Mills and Ferroalloy Manufacturing), an industry of 359 US establishments employing 78,532 people. That concordance is how imports of this line are compared with US output.
All 5 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 7226.91.15 | Of a width of 300 mm or more | Free |
| 7226.91.25 | Of a width of less than 300 mm | Free |
| 7226.91.50 | Of a thickness of 4.75 mm or more | Free |
| 7226.91.70 | Of a width of 300 mm or more | Free |
| 7226.91.80 | Of a width of less than 300 mm | Free |