DIN standard mild carbon steel q345 steel sheet

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 q345 steel sheet, hot rolled sheet and cold rolled sheet?

S355J2 is a European standard low alloy high strength structural steel grade, equivalent to Q345D. Because of its good impact toughness and welding performance, S355J2 steel plate is widely used in bridges, ships, power plant equipment, hoisting and transportation machinery, machinery manufacturing and other engineering and welding structures that bear high loads. S355J2 steel plate delivery status: hot rolled delivery, the q345 steel sheet specific delivery status should be indicated in the contract.

The recent improvement in demand is also reflected in q345 steel sheet social inventory. This year, the growth rate of q345 steel sheet social inventory has slowed down compared with the same period last year, which indirectly reflects that the demand of q345 steel sheet this year is better than that of last year. In addition, q345 steel sheet production, which has set new highs again and again, has slowed down this month, with a slight decline. The decline of q345 steel sheet production will also alleviate the relationship between supply and demand.