But while American steel industry groups have hailed the tariff hike, economic experts have sounded alarms, saying it could further disrupt the already volatile global supply chai

President Trump doubled almost all aluminum and steel import tariffs, seeking to curb China’s growing dominance in global trade. These six charts show the tariffs’ potential economic effects.

President Trump has doubled the rate on foreign metals to 50%, saying the levies weren’t high enough to help the U.S. industry.