Section 232 Steel & Aluminum Calculator

# US Section 232 Tariff Calculator: Metals, Autos, Chips & Derivative Rules

Section 232 of the Trade Expansion Act of 1962 authorizes the President of the United States to adjust imports that threaten to impair national security. Administered by the U.S. Department of Commerce (Bureau of Industry and Security - BIS) and enforced at the border by CBP, Section 232 tariffs apply significant protective duties on steel, aluminum, copper, automotive products, advanced semiconductors, and timber. Calculating Section 232 liabilities requires distinguishing between "Wholly-Of" primary raw metals (50% tariff rate) and "Derivative" processed products (25% tariff rate), verifying country exemptions, and compounding duties onto base HTSUS tariffs.

Section 232 Tariff Rates & Industry Breakdown

Section 232 tariff surcharges apply to specified HTSUS codes across strategic industrial sectors:

| Sector / Material Category | Wholly-Of / Primary Metal Rate | Derivative Article Rate | Key Affected Product Lines |

|---|---|---|---|

| Steel Products | 50.0% (HTSUS Chapter 72/73) | 25.0% (Derivative Items) | Bars, sheets, pipes, wire, structural beams, fasteners |

| Aluminum Products | 50.0% (HTSUS Chapter 76) | 25.0% (Derivative Items) | Unwrought aluminum, plates, foils, extruded tubes, bumpers |

| Copper & Copper Alloys | 50.0% (HTSUS Chapter 74) | 25.0% (Derivative Items) | Cathodes, wire rods, copper tubing, electrical busbars |

| Automobiles & Parts | 25.0% (HTSUS Chapter 87) | 25.0% (Auto Derivatives) | Passenger cars, light trucks, engines, transmissions |

| Semiconductors & Chips | 25.0% (HTSUS Chapter 85) | 25.0% (Board Assemblies) | Microprocessors, memory chips, power discrete devices |

| Softwood & Timber | 10.0% – 25.0% (Chapter 44) | 10.0% (Lumber Derivatives) | Structural lumber, plywood, architectural millwork |

"Wholly-Of" vs. "Derivative" Classification Rules

A critical distinction in Section 232 valuation is identifying whether an article is a primary metal or a derivative product:

• Primary "Wholly-Of" Articles (50% Rate): Raw, unwrought, or semi-finished metals where the article consists entirely of steel, aluminum, or copper (e.g., steel ingots or aluminum billets classified under Chapter 72 or 76).
• "Derivative" Articles (25% Rate): Finished structural or manufactured goods containing steel, aluminum, or copper components (such as steel nails, aluminum body panels, or copper wiring harnesses) specifically listed under BIS derivative proclamations.

Section 232 Stacking with Base HTSUS Tariffs

Section 232 duties stack additively on top of standard Most-Favored-Nation (MFN) tariffs assessed on the FOB Customs Value:

Total Duty Rate (%) = Standard MFN Rate% + Section 232 Rate% (+ Section 301 Rate% if from China)

Worked Landed Cost Example: $100,000 Imported Steel Pipe Consignment

Let us calculate the total CBP border entry bill for an ocean shipment of welded steel pipes ($100,000 FOB value) imported from a non-exempt country.

Order & Tariff Parameters:

• FOB Invoice Price: $100,000.00 USD
• Entered Customs Value: $100,000.00 USD
• 10-Digit HTSUS Code: 7306.30.50.28 (Welded Steel Pipes)
• Base MFN Duty Rate: 0.0% (Free under MFN)
• Section 232 Tariff Rate (Steel Derivative): 25.0%
• Transport Mode: Ocean Freight (HMF Applicable)

Financial Step-by-Step Calculation:

1. Customs Value (FOB): $100,000.00 USD
2. Base MFN Duty (0%): $0.00 USD
3. Section 232 Tariff (25%): $100,000 × 25.0% = $25,000.00 USD
4. MPF Assessment (0.3464%): $100,000 × 0.003464 = $346.40 USD
5. HMF Assessment (0.125%): $100,000 × 0.00125 = $125.00 USD
6. Total CBP Entry Summary Payment (Form 7501): $25,000 + $346.40 + $125.00 = $25,471.40 USD

BIS Section 232 Exclusion Process & Tariff Relief

Importers can apply to the Bureau of Industry and Security (BIS) for individual product exclusions from Section 232 tariffs:

• 232 Exclusion Portal: US importers submit exclusion requests via the online 232 Portal (232portal.bis.doc.gov).
• Commercial Availability Test: Exclusions are granted only if BIS determines that the specific steel, aluminum, or copper grade is not produced in the United States in a sufficient and reasonably available amount or satisfactory quality.
• Reporting Exclusion Numbers: Granted exclusions receive an official BIS Exclusion ID (e.g. 9903.80.01) reported on CBP Form 7501 to clear cargo at 0% 232 tariff.

Frequently Asked Questions

Are imports from USMCA partners (Canada & Mexico) subject to Section 232?

Canada and Mexico reached bilateral agreements with the US waiving Section 232 tariffs on steel and aluminum, provided imports do not exceed historical baseline volumes. Melted-and-poured requirements apply.

How is the "Melt and Pour" rule enforced for steel imports?

Importers declaring 232 steel exemptions must report the original country where the raw steel was melted and poured on CBP Form 7501, preventing transshipment of foreign steel through third-party countries.

Can Section 232 tariffs be refunded using Duty Drawback?

No. Under federal regulations, Section 232 national security duties are non-drawbackable. They cannot be reclaimed even if the imported metal is subsequently re-exported outside the US.

What is the difference between Section 232 and Section 301 tariffs?

Section 232 tariffs are based on national security (Trade Expansion Act of 1962) and apply globally by material. Section 301 tariffs are based on unfair trade practices (Trade Act of 1974) and apply specifically to goods originating in China.

Do Section 232 tariffs apply to goods cleared under Foreign Trade Zones (FTZs)?

Goods subject to Section 232 entering US Foreign Trade Zones (FTZs) must be admitted under "privileged foreign status," preserving 232 duty liability upon entry into US customs territory.

Practical Step-by-Step 232 Exclusion Filing Procedure

To apply for a product-specific Section 232 tariff exclusion from the Department of Commerce:

1. Register on the official BIS 232 Exclusion Portal (232portal.bis.doc.gov).
2. Submit a formal Exclusion Request detailing your 10-digit HTSUS code, exact chemical composition, dimensions, strength specifications, and annual import volume in kilograms.
3. 30-Day Public Objection Period: US domestic steel/aluminum producers review the request. If no domestic producer files an objection establishing capability to supply the exact metal specification within 8 weeks, BIS approves the exclusion.
4. Retroactive Duty Refunds: Approved exclusions apply retroactively to the date the exclusion request was officially posted on the portal. Importers file Post-Summary Corrections (PSCs) with CBP to receive direct refunds of paid 232 duties.

Technical Breakdown of Derivative Metal Categories

Under Presidential Proclamation 9980 covering derivative steel and aluminum products:

• Steel Derivatives: Steel nails, tacks, staples, wire, bumpers, and structural pipe fittings.
• Aluminum Derivatives: Aluminum wire, stranded wire, aluminum cables, body stampings, and bumper structures.