Steel and aluminum are ubiquitous in Americans’ lives. A stainless steel refrigerator holds aluminum soda cans. A stainless steel drum tumbles inside an aluminum washing machine. They’re the metals used in cars and airplanes, phones and frying pans, skyscrapers and zippers.

The Trump administration’s 25 percent tariffs on steel and aluminum imports are now in effect but South Korea, Japan and Australia remain hopeful of exemptions.

U.S. aluminum consumption was from imports and 13% of steel use was from imported steel - would tariffs change that?