[pseudocomposer]

Unless https://www.math.net/pounds-to-tons is severely wrong, a US ton is 2200lbs, UK 2240lbs, metric 2204lbs. Put a different way, US to metric is a <0.2% difference (the smallest), US to UK is a <2% difference (the biggest).

At a scale of 433 tons, it doesn’t really matter much which kind of tons (unless you’re actually doing the rocket science, of course).

[nneonneo]

US ton is 2000 lb, not 2200. I spent some time in the US and had never heard of a ton meaning 2200 lb. Unfortunately, that's a 10% error off of a metric ton.

[jjj_throw]

US short ton is 2000lbs, long ton is ~2200.