Analysis
HTS 7304.90.30 covers having a wall thickness of 4 mm or more: of alloy steel under heading 7304 (tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel).
The normal trade relations rate here is zero, shared by about 77% of the 250 tariff lines in chapter 73, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.
The other lines in the same group are 7304.90.10 (of iron or nonalloy steel, duty-free), 7304.90.50 (of iron or nonalloy steel, duty-free) and 7304.90.70 (having a wall thickness of less than 4 mm: of alloy steel, duty-free).
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.
Goods from countries without normal trade relations pay the column 2 rate of 8.5% instead of nothing, so origin decides between free entry and a 8.5% duty.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 7304.90.10 | Of iron or nonalloy steel | Free |
| 7304.90.50 | Of iron or nonalloy steel | Free |
| 7304.90.70 | Having a wall thickness of less than 4 mm: of alloy steel | Free |