Trading partners around the world express anger including Mexico which buys more steel out of the US than it sends the other way

The US has doubled tariffs on foreign steel and aluminum imports to 50%, pressing ahead in the face of criticism from key trading partners with a measure that Donald Trump says is intended to revive the American industry.

About a quarter of all steel used in the US is imported and data shows the increased levies will hit the closest US trading partners – Canada and Mexico – especially hard. They rank first and third respectively in steel shipment volumes to the US.