Severals properties of metal materials

Annealing, normalizing, quenching, and tempering are the "four fires" of carbon steel plate in the overall heat treatment.

According to the latest customs statistics, steel exports in the first half of 2011 were 24.33 million tons, an increase of 3.2% year-on-year; Imports were 8.03 million tons, down 4.8 percent year-on-year. As a whole, steel exports are still at a high level of more than 4 million tons, exceeding expectations. Restrained by the weak situation of international steel market, it is expected that the export situation of Chinese steel products in July and August is still not optimistic. The severe export situation will be changed in the fourth quarter. The export of the whole year is expected to reach about 45 million tons, which is helpful to alleviate the domestic steel market supply pressure.

In the first five months of this year, our cumulative exports of 2204 million tons of steel, year-on-year growth of 10.1%. Under the background of the deepening European debt crisis and the slowing economic growth of emerging market countries, the situation of Chinese steel exports in the first half of the year is better than the expectation of insiders at the beginning of the year. However, not all varieties of exports are very good, the author from the point of view of the varieties of interpretation of the difference.