Performance characteristics of q345 steel plate

According to its surface quality, pickling q345 steel plate sheet steel can be divided into I and N two groups; According to its cup protrusion depth can be divided into ordinary and deep two levels. Application: Mainly used in such as body clock case, flashlight case, instrument case, lamp mouth, automobile brake drum, etc. Steel plate size: thickness of 0.25-2mm.

Cleveland cliffs announced on March 13 that it had completed the acquisition of AK q345 steel plate steel, foreign media reported In the transaction of holding), shareholders of Cleveland cliffs and AK steel respectively voted on the US billion acquisition agreement at their respective shareholders' meeting to complete the resolutions required for the announcement of acquisition of AK steel q345 steel plate at the beginning of the year. The acquisition is Cleveland cliffs' first foray into steel manufacturing.

The sulfur element (S element) comes from the ore and fuel coke of steelmaking. It is a harmful element in q345 steel plate etc. steel. Sulfur exists in steel in the form of iron sulfide (FeS). FeS and Fe form a low melting point (985℃) compound. The hot working temperature of steel is generally above 1150 - 1200℃, so when the steel is hot working, the premature melting of FeS compound causes the workpiece to crack, which is called "hot brittleness". It reduces ductility and toughness of steel and causes cracks during forging and rolling. Sulfur is also detrimental to welding performance and reduces corrosion resistance.

q345 steel plate, 25# steel plate is a high-quality carbon structural steel plate, in accordance with the standard GB / T711. The delivery status is hot rolling, normalizing, tempering, normalizing plus tempering and annealing. 25# steel plate is used as mechanical structural parts of hot forging or hot stamping, carbonaceous cyanide parts on machine tools, shafts, rollers, connectors, washers, bolts and nuts with small load in heavy and medium-sized machinery.