What is the U.S. tariff rate on iron and steel castings and articles?

USITC calculated duties imply an effective rate of 47.79% in Jun 2026 (calculated duties ÷ covered customs value, USITC DataWeb). The parseable Column 1 General line-rate range is 0%–8.6%; individual lines are called “Free” only when the official General field is literally Free, and product, origin, preference and tariff mix can contribute to the observed-rate difference.

What are the statutory MFN line rates for iron and steel castings and articles?

The parseable Column 1 General line-rate range is 0%–8.6% across the family's 13 eight-digit HTS lines in the 2026 Harmonized Tariff Schedule (headings 7325, 7326). “Free” means the official General field is literally Free for a line; it does not determine final entry liability.

Which countries supply the most iron and steel castings and articles to the U.S.?

Top retained sources in 2025: China ($1.6B at 66.21%), Mexico ($1.1B at 11.62%), Canada ($608.8M at 16.03%). China holds 27.4% of total family import customs value. Retained sources cover 81.6%; their HHI is 1310, a lower bound whose floor falls in the diversified range without classifying the omitted tail.

How much iron and steel castings and articles does the U.S. import?

$6.0B of customs value in 2025, with $2.1B in USITC Calculated Duties — an effective calculated-duty rate of 34.54%.

Is the U.S. a net importer of iron and steel castings and articles?

Yes — a net importer in 2025: $6.0B imported vs $5.4B exported (exports are 90% of imports).

Tariff monitor · Metals & Mill Products

Iron and Steel Castings and Articles: Statutory & Effective Tariff Rates

USITC Column 1 General rates for 13 iron and steel castings and articles HTS lines (parseable range 0%–8.6%). Effective rate Jun 2026: 47.79%; monthly history since

The short answer

The observed effective calculated-duty rate on U.S. imports of iron and steel castings and articles was 47.79% in Jun 2026, up from 45.65% a year earlier — USITC Calculated Duties divided by covered customs value. The Column 1 General line-rate range is 0%–8.6% across 13 HTS lines in the 2026 schedule; individual lines are called “Free” only when the official General field is literally Free, which still does not determine a shipment’s final duty. China is the largest source, holding 27.4% of 2025 imports.

Statutory rates from the schedule

Cast articles and other fabricated articles of iron or steel, including stampings and forgings not covered elsewhere. This family covers HTS headings 7325, 7326: 13 eight-digit rate lines with a parseable Column 1 General range of 0%–8.6% in the 2026 schedule. “Free” means the official General field is literally Free for that line; it does not determine final entry liability.
Chapter 99 references on individual lines (for example, 9903.90.09) identify provisions to review; applicability and any additional duty depend on the entry facts.

Observed calculated-duty data

Latest month on record (2026-06): 47.79% effective on $444.6M of imports, versus 45.65% in the same month a year earlier. The monthly archive holds 78 observations from 2020-01 through 2026-06.
In 2025, U.S. imports for consumption in this family totaled $6.0B in customs value, with $2.1B in USITC reported calculated duty on $6.0B of covered customs value: an effective calculated-duty rate of 34.54%. The aggregate reflects the recorded entry mix but does not attribute the result to a specific legal provision.
A year earlier the effective calculated-duty rate was 8.21%, so the observed rate rose 26.3 points.
Top source countries in 2025: China ($1.6B at 66.21%), Mexico ($1.1B at 11.62%), Canada ($608.8M at 16.03%), India ($484.3M at 27.54%), Germany ($253.5M at 31.2%).
Reported freight and insurance equaled 6.76% of covered customs value in 2025 ($329.6M total); charge coverage was 81.6% of customs value, from USITC DataWeb. It is shown alongside the effective calculated-duty rate and is not part of the customs-value duty base.
For scale, 2025 imports in this family equal 1.3% of the U.S. fabricated metal products industry's $468B gross output (2025, BEA).

Representative rate lines

7325.10.00: Of nonmalleable cast iron · MFN Free
7325.91.00.00: Grinding balls and similar articles for mills · MFN 2.9%
7325.99.10.00: Of cast iron · MFN Free
7325.99.50.00: Other · MFN 2.9%
7326.11.00.00: Grinding balls and similar articles for mills · MFN Free
7326.19.00: Other · MFN 2.9%
7326.20.00: Articles of iron or steel wire · MFN 3.9%
7326.90.10.00: Of tinplate · MFN Free

Frequently asked questions

What is the U.S. tariff rate on iron and steel castings and articles? USITC calculated duties imply an effective rate of 47.79% in Jun 2026 (calculated duties ÷ covered customs value, USITC DataWeb). The parseable Column 1 General line-rate range is 0%–8.6%; individual lines are called “Free” only when the official General field is literally Free, and product, origin, preference and tariff mix can contribute to the observed-rate difference.
What are the statutory MFN line rates for iron and steel castings and articles? The parseable Column 1 General line-rate range is 0%–8.6% across the family's 13 eight-digit HTS lines in the 2026 Harmonized Tariff Schedule (headings 7325, 7326). “Free” means the official General field is literally Free for a line; it does not determine final entry liability.
Which countries supply the most iron and steel castings and articles to the U.S.? Top retained sources in 2025: China ($1.6B at 66.21%), Mexico ($1.1B at 11.62%), Canada ($608.8M at 16.03%). China holds 27.4% of total family import customs value. Retained sources cover 81.6%; their HHI is 1310, a lower bound whose floor falls in the diversified range without classifying the omitted tail.
How much iron and steel castings and articles does the U.S. import? $6.0B of customs value in 2025, with $2.1B in USITC Calculated Duties — an effective calculated-duty rate of 34.54%.
Is the U.S. a net importer of iron and steel castings and articles? Yes — a net importer in 2025: $6.0B imported vs $5.4B exported (exports are 90% of imports).

About this data

Reference statistics derived from USITC published data. Not a customs ruling. MFN-Free and Special-rate fields describe statutory line coverage only; final entry liability requires origin, date, eligibility, exclusions and other transaction facts. Calculated Duties are statistical estimates, not a cash-collections ledger. Confirm classification, origin, program eligibility, and final entry liability with a licensed customs broker.

Last reviewed 2026-08-31.