Steel & Aluminum Import Duty from China: 2026 Section 232 & AD/CVD Calculator
Model cumulative 4-layer customs duties on aluminum extrusions, stainless fasteners, structural steel fabrications, die-cast housings, and Section 232 derivative articles.
2026 Steel & Aluminum China Tariff Stacking Matrix (Chapters 72, 73 & 76)
Load common industrial metal profiles, fasteners, and stamped fabrications below (note: click the red AD/CVD Scope Radar inside the calculator to test Entry Type 03 cash deposits):
| Commodity / Subheading | HTS Code | Base MFN | Sec 301 | Sec 232 | 2026 IEEPA | Combined Rate | Load in Tool |
|---|---|---|---|---|---|---|---|
| Aluminum Extrusions & Profiles | 7604.21.00 | 1.5% | 25% | 25% | 20% | 71.50% + AD/CVD | |
| Steel Bolts, Screws & Threaded Fasteners | 7318.15.80 | 8.5% | 25% | 25% | 20% | 78.50% | |
| Hot-Rolled Carbon Steel Flat Coils | 7208.39.00 | 0.0% | 7.5% | 25% | 20% | 52.50% | |
| Stamped / Fabricated Steel Articles | 7326.90.86 | 2.9% | 25% | 25% | 20% | 72.90% |
Worked Example: $12,000 Shipment of Steel Fasteners (HTS 7318.15.80)
Consider an industrial distributor importing 50,000 high-tensile hex bolts ($0.24/pc = $12,000 FOB Ningbo) via ocean LCL ($1,280 freight + $50 insurance):
Four-Layer Section 232 + Section 301 CBP Entry Breakdown
- Declared Customs FOB Value: $12,000.00 (50,000 units @ $0.24/unit)
- 1. Column 1 Base MFN Duty (8.5% under HTS 7318.15.80): $1,020.00
- 2. USTR Section 301 List 3 Duty (25.0%): $3,000.00
- 3. Proclamation Section 232 Steel Tariff (25.0%): $3,000.00
- 4. 2026 IEEPA China Surcharge (20.0%): $2,400.00
- Total Stacked Customs Duties (78.50%): $9,420.00
- 5. CBP MPF ($41.57) + Ocean HMF ($15.00) + Freight/Ins ($1,330.00): $1,386.57
- Total U.S. Landed Cost: $22,806.57 ($0.46 per bolt — nearly 2x factory FOB)
Mill Test Certificates (MTR) & Anti-Dumping Scope Rulings
Always collect certified Mill Test Reports (MTRs) from your Chinese supplier prior to vessel loading. CBP port specialists routinely issue Form 28 Requests for Information demanding proof of steel melt-and-pour origin and chemical alloy composition to screen for Section 232 evasion and Commerce Department AD/CVD orders.
Frequently Asked Questions: Steel & Aluminum Import Duty from China: 2026 Section 232 & AD/CVD
Do Section 232 steel and aluminum tariffs stack with Section 301 and IEEPA?
Yes. For Chinese-origin steel and aluminum articles under Chapters 72, 73, and 76, CBP stacks the Column 1 Base MFN rate, the applicable Section 301 rate (7.5% or 25%), the 25% Section 232 national security tariff, and the 2026 IEEPA surcharge.
What is CBP's melt-and-pour and smelt-and-cast requirement?
Importers must report on CBP Form 7501 the original country where raw steel was melted and poured, or where primary/secondary aluminum was smelted and cast, supported by factory Mill Test Certificates.
Are aluminum extrusions from China subject to Anti-Dumping duties?
Yes. U.S. Department of Commerce orders A-570-967 and C-570-968 impose steep AD/CVD cash deposit rates (often 86% to 376%+) on a broad scope of Chinese aluminum extrusions, unless the finished assembly qualifies for a specific finished-merchandise exclusion.
What Entry Type is required if my metal part falls under an AD/CVD order?
Shipments subject to Antidumping or Countervailing Duties must be filed as CBP Formal Entry Type 03 (regardless of whether value is under $2,500) and cannot use informal or de minimis clearance.
How are Section 232 derivative metal products taxed?
Designated downstream derivative steel and aluminum products (such as certain fasteners, bumpers, and wire articles) face the 25% Section 232 duty; for specified multi-material derivatives, duty is assessed on the documented value of the steel/aluminum component.
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