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.

U.S. President Donald Trump's increased tariffs on steel and aluminum imports took effect on Wednesday as prior exemptions, duty free quotas and product exclusions expired, as his campaign to reorder global trade norms in favor of the U.

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