The Material Report #006
The Squeeze Moved to Your Tool Crib.
Two weeks ago, costs were accelerating and demand was softening. The last fourteen days complicated that picture. Raw metals are still climbing but the pace cooled. Nucor dropped its weekly hot-rolled increase from $10/ton to $5/ton. Tungsten came off its peak. Copper round-tripped. Aluminum stabilized at multi-year highs.
The April 6 Section 232 restructuring started hitting invoices. The squeeze that was supposed to come from material costs is showing up somewhere most shops didn't budget for: the tool crib. Swiss insert holders, end mills, coolant, workholding, gages. Anything made overseas is arriving with a new duty calculated on the full invoice value, not just the metal content.
The April 6 Tariff Shift, Explained
Here's what actually changed. Before April 6, if you imported a Swiss vise or a Korean end mill, the Section 232 duty applied only to the metal content, which suppliers often disclaimed down to small amounts. After April 6, the duty applies to the full invoice value of covered derivative products. The rates are tiered. Most derivative products pay 50%. Items "substantially made of" steel, aluminum, or copper pay 25%. Certain industrial and grid equipment pays 15% through end of 2027. Products made abroad using US-melted-and-poured metal pay 10%. There's a 15% weight threshold for items outside the core chapters, so low-metal-content products can still escape.
Fixtures, workholding, gages, tooling, and machine components are in scope. Practical Machinist forums this week include Swiss tools arriving at 39% duty and a Canadian coolant shipment hit with 100%, consistent with the new rate structure stacked on country-specific actions. The exclusion petition process is closed, though Commerce and USTR can still add items on their own.
Any PO with an April through June delivery on imported tooling, metrology, or workholding should be reviewed. If the supplier hasn't updated their duty-inclusive quote, they will. Ask now, if your contracts allow it.
Prices Since Last Issue
Steel mill moves are slowing, but availability is tighter than ever. Nucor hit $1,045/ton on April 13, its 19th consecutive weekly increase, but the size of each increase dropped from $10 to $5. The spot market is pushing back on further jumps. The real story is on the supply side: service center inventories hit 2.24 months in March, the lowest reading since June 2021, and some mills are telling buyers no spot tons until at least July. Plate and coated are where the next moves are happening, with Nucor announcing +$60/ton on plate and galvanized up $20~$30/ton in the week ending April 14. HARDI's April poll showed zero percent of galv buyers expect lower prices in the next 30 days.
Aluminum stabilized, but at a level that's painful. EGA told customers on April 3 that restoring full production at Al Taweelah could take up to 12 months, and declared force majeure on some products April 12. Alba is still running reduced. LME hit $3,665/tonne on April 13, a four-year high, with Midwest Premium holding near $1.00/lb and all-in US pricing around $2.64/lb. Goldman raised its Q2 target to $3,450/tonne and now projects a 900,000-tonne global deficit this quarter. Century Mt. Holly pulled first metal from its expansion on April 16, which eventually lifts US primary output by about 10%, but that's a late-2026 story, not a Q2 one.
Stainless: NAS announced a May 1 price action but specific 304 and 316 surcharge tables weren't public yet. LME nickel is up about 6% since last issue, so expect May surcharges slightly higher.
Copper round-tripped. Dipped on news of the brief Hormuz blockade, then rallied back above $6.00/lb by April 13. Net change is close to zero.
Tungsten and carbide tooling came off the peak but remain the big story for the tool crib. European APT is still more than 225% above January levels. Sandvik Coromant and Kennametal both have May 1 price lists coming. Specifics aren't public yet, but Kennametal's Q2 earnings call guided blended price and tariff of about 11% for fiscal 2026, rising to 13% for January through March. High single digits to low double digits is a reasonable planning number. Scrap carbide is at $31/lb for top-tier, worth inventorying aggressively before May 1.
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The Seoul Question
A machinist on Practical Machinist posted this week that he's planning to hunt for YG-1 tooling while on vacation in Seoul. He's betting Korean prices plus the new 25% duty might still beat his US distributor quotes.
It's one guy on vacation, not a procurement strategy. But the fact that it's even a question shows how the spread has shifted. US-made tooling has a cost advantage right now that didn't exist a year ago. If you haven't re-quoted your top ten tooling SKUs against a domestic alternative since Q4 2025, it's worth an afternoon.
What to Watch
Lake City Army Ammunition Plant strike, week three. About 1,350 IAM Local 778 workers walked off on April 4 at the only major small-arms ammo plant serving the US military. Wages, mandatory overtime, no paid sick leave. If this runs through May while the administration is quadrupling munitions contracts elsewhere, it becomes a story about whether subsidies actually fix the industrial base.
Steel earnings the week of April 20. Cleveland-Cliffs, Steel Dynamics, and Nucor all report. Their customer commentary will tell you more about Q2 demand than any PMI.
The 10% baseline tariff ruling, expected soon. The Court of International Trade heard arguments April 10. The panel sounded skeptical of the government's position. A ruling either way resets the duty on everything imported.
Eric Na writes The Material Report, a bi-weekly newsletter on metal pricing trends for machinists and shop owners.
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Sources:
- Steel Market Update, "Nucor raises HR spot price to $1,045/ton" (Apr 13, 2026)
- Steel Market Update, "SSAB, Nucor aim to increase plate prices by $60/ton" (Apr 6, 2026)
- Steel Market Update, "SMU Price Ranges: Availability trumps price" (Apr 14, 2026)
- Steel Market Update, "HARDI: Galv market finds mixed conditions, prices steadily rising" (Apr 15, 2026)
- EGA, "Update on EGA's Al Taweelah site" (Apr 3, 2026)
- The National, "EGA declares force majeure" (Apr 12, 2026)
- Bloomberg, "Century Aluminum Sees Expansion Delivering 10% Lift to US Output" (Apr 16, 2026)
- White House Proclamation, "Strengthening Actions Taken to Adjust Imports of Aluminum, Steel, and Copper" (Apr 2, 2026)
- C.H. Robinson, "U.S. Expands and Increases Section 232 Tariffs Effective April 6" (Apr 6, 2026)
- Motley Fool, "Kennametal Q2 2026 Earnings Call Transcript" (Feb 4, 2026)
- Reason, "Thoughts on Today's Oral Argument in the Section 122 Tariff Cases" (Apr 10, 2026)
- Axios Kansas City, Lake City Army Ammunition Plant strike coverage (Apr 13, 2026)