Definition - What does Metric Ton mean?
Metric Ton is a non SI unit of mass which equals to a megagram or 1000 kilograms or about 2,204.6 pounds. It can be alternatively used as a Metric Ton unit which equals to 22.0462 pounds within the metals particularly trading in the United States. Although not being a part of SI per se, the Metric Ton is accepted to be used with prefixes and SI units by the International Committee for Weights and Measures like other units such as liter, bar and day.
Petropedia explains Metric Ton
Metric Ton is also known as tonne. Its SI symbol is "t". It is considered as a symbol and not as an abbreviation, hence should never be followed by a period. In the nuclear and offshore industries, no-approved and informal abbreviations are included such as "mT", "mt", "T", "Te" and "MT". Metric Ton or Tonne is equivalent to 1000 kilograms or 1000000 grams. In petroleum industries, tonne is used as a unit of energy, i.e., "tonne of oil equivalent (toe)". The energy released on burning a tonne of crude oil is approximately 42 GJ.