CS plate EN steel grade S355J2 plates

The hot rolling method is to heat the EN steel grade S355J2 plates steel material to about 1000 ℃ ~ 1250 ℃ and use the rolling mill to roll it. The traditional hot rolling process is generally divided into the following two steps: the first step is to use the primary rolling mill or billet rolling mill to roll the ingot, billet or continuous casting billet into a certain shape and size of billet. This kind of EN steel grade S355J2 plates rolling process is usually called semi-finished product production, also called blank production.

EN steel grade S355J2 plates, 14MnNbq plate is a structural steel plate for bridges, which is a low-alloy high-strength steel. 14MnNbq is a special steel plate for the manufacture of bridge structural parts. The end of the steel grade marked with q is the acronym for bridge. The thickness of the bridge steel plate is 6-60mm, which is used to make riveted and bolt-welded structure of road bridges and railway bridges, including sea-crossing bridges.

How to prevent EN steel grade S355J2 plates, steel plate cutting cracks? 1. Preheat the steel plate before cutting, and the preheating temperature depends on the quality grade and thickness of the steel plate. However, it needs to be heated evenly. 2. The cutting speed is reduced appropriately, but its reliability is not as good as preheating. It is suggested to preheat the cutting belt with flame gun cavitation several times before cutting, and the preheating temperature should reach about 180℃.

"As Covid 19 spreads around the world, all unnecessary businesses and factories have been closed in Italy this week. South Korea's POSCO, the world's fifth-largest steelmaker, announced on March 24th that it would close its EN steel grade S355J2 plates wire-processing centre near the northern Italian city of Verona from Thursday March 26th until April 3rd. POSCO has already closed two wire-processing centres in Delhi and Pune. Two wire processing centers in Malaysia and Thailand also announced last week that they will be closed until March 31."