In 2018, one of our India customers visit Zhengzhou office building and work shop to discuss carbon steel Q235B grind plate technical request. They have strict surface and thickness tolerance, and they also request UT and MT for testing for Q235B grind plate. As a result, they purchase 179 tons as trial order for first cooperation. After using the gind plate, the India customer has good comment on our A36 sheet metal quality. Till now, we keep exporting around 100 tons per month as regularly.
For the A36 sheet metal construction industry, the largest consumer sector of the steel industry and the least affected industry in the EU this year, it is estimated that A36 sheet metal steel consumption will account for 35% of the EU steel consumption market this year. Uestf forecasts that the output of the construction industry will decline by 5.3% in 2020 and rise by 4% in 2021.
Generally speaking, the gas with high combustion speed and high combustion value is suitable for steel plate cutting; The combustible gas with low combustion value and slow combustion speed is more suitable for thick plate cutting, especially the A36 sheet metal steel plate with more than 200mm thickness. If natural gas is used for cutting, the ideal cutting quality will be obtained, but the cutting speed will be slightly reduced.
The non-metallic inclusions of the hot-rolled A36 sheet metal steel sheet are elongated bands, which are not well combined with other metals. Therefore, compared with the anisotropy that can be observed from the shape and size of the crystal grains, the steel sheet has a larger potential The anisotropy results in poor ductility perpendicular to the rolling direction. The internal anisotropy of the A36 sheet metal cold-rolled steel sheet can be alleviated by annealing.
