# Trump doubles steel and aluminum tariffs to 50% as U.S. Steel deal remains unfinished
The president said the higher levies would start Wednesday, even as he described a still-unclear Nippon Steel investment in U.S. Steel.
President Donald Trump told steelworkers in Pennsylvania on Friday that the tariff on imported steel would rise to 50%, doubling the rate and extending the pressure on a metal used in housing, autos and other goods. He later said on Truth Social that aluminum tariffs would also be doubled to 50%, with both increases due to take effect on Wednesday. The announcement came during a visit to U.S. Steel's Mon Valley Works-Irvin Plant in West Mifflin, where Trump cast the move as protection for domestic industry and framed the day as part of a broader industrial revival.
The tariff decision matters because steel costs were already moving higher before the new increase. AP reported that steel prices had climbed 16% since Trump returned to office in mid-January. The U.S. Commerce Department figure cited by AP put the March 2025 price at $984 a metric ton, above Europe and China. Trump argued that the higher tariff would secure the industry further, but the same report warned that a sharp increase could push prices even higher for sectors that rely heavily on steel. Housing and auto manufacturing are obvious examples, but the broader supply chain also includes machinery, appliance makers and downstream fabrication work.
The announcement landed alongside the still-unresolved U.S. Steel-Nippon Steel transaction. Trump said he still had to approve the final deal, saying he had not yet seen it. That left the market with a mixed message: the administration was talking up what it called a "blockbuster agreement" that would keep U.S. Steel American, while also admitting that the deal was not complete. AP reported that lawmakers briefed on the plan described it as a structure in which Nippon would buy U.S. Steel, invest billions in plants across several states and operate under an American-heavy board with a government "golden share" that would give Washington veto power. None of that had been publicly finalized, and U.S. Steel had not offered investors a full public account of the revised arrangement.
That uncertainty is central to the story. Trump had once vowed to block the Japanese company's bid outright, and the union response remains skeptical. The United Steelworkers said its concern is the impact a merger with a foreign competitor could have on national security, members and the communities where they live and work. Workers at the plant where Trump spoke were more mixed, with some seeing any investment as a way to revive aging machinery and keep production alive. One line feeder quoted by AP said the plant needed money to fix equipment because it is old and falling apart. The president, for his part, argued that the deal and the tariff increase together would reinforce domestic production.
The move also fits a broader political pattern. Trump has made U.S. manufacturing a signature issue since retaking office, and steel remains a symbolically loaded industry in swing-state Pennsylvania. AP noted that the United States produced about three times as much steel as it imported last year, and that Canada, Brazil, Mexico and South Korea were the largest sources of imports. That means the tariff decision will reverberate not only through trade policy but through industrial purchasing, prices and diplomatic relations. For now, the concrete fact is simple: the tariff on steel and aluminum is going to 50%, and the administration has not yet fully explained the final shape of the U.S. Steel deal that was being discussed on the same stage.
