Strip steel is coiled and curved steel plate, which is different from common steel pipes and steel plates. Strip steel has obvious characteristics. First, it is thin and easy to curl, which is convenient for logistics and transportation. Second, the surface quality of A572 Gr 42 high strength steel, strip steel is good, the luster is bright and it has good flexibility. Third, the strip steel is easy to process. When you need to use it, you only need to straighten the bent part and you can directly process it. Fourth, the precision is high, and the strip steel can be made of plain carbon steel, carbon structure steel, spring steel, tool steel, stainless steel, etc.
Through chemical composition analysis and simulation tests, it is found that A514 Gr Q steel plate is prone to cracks or decreased toughness during welding. ASTM A514 Gr Q steel plate is sensitive to cold cracking. In order to obtain good weld quality of A572 Gr 42 high strength steel, A514 Gr Q steel plate, it should be controlled from two aspects: (1) control the hardness value of HAZ; (2) control the residual diffusible hydrogen content.
The BBNSTEEL company has the first-class qualification for steel structure professional contracting, integrating production, design and installation, and can undertake various steel structure projects. The product has a wide surface, flat and smooth surface, and neat trimming. It has users in more than 10 provinces and cities in China and is exported to the United States, Canada, Japan, Europe, Southeast Asia and other countries and regions.
Rolled sheet is a very common material in industrial construction. Rolled sheet at room temperature is cold-rolled sheet, and cold-rolled sheet is the rolling of hot-rolled coils below the recrystallization temperature. The hot-rolled sheet is rolled above the recrystallization temperature. So what is the difference between A572 Gr 42 high strength steel, hot rolled sheet and cold rolled sheet?
