S355J2 steel plate hot rolled steel plate A36 rolling process is controlled rolling process. In the rolling process, the ingot rolling temperature is 1000-1050℃; in the first stage, the low-speed and large reduction rolling process is adopted, the high-temperature stage is 950-1000℃, the rolling speed is 1.6-2.0m/s, the hot rolled steel plate A36 single reduction rate is 15-20%, and the cumulative reduction rate is 40-45%, so as to ensure sufficient deformation of ingot. In the first stage, the start rolling temperature is 910-930℃, and the finish rolling temperature is ≤ 870℃.
Since the beginning of this year, the global hot rolled steel plate A36 steel pipe industry, like many other industries, is facing severe market situation. The difference is that novel coronavirus pneumonia is not only affected by the epidemic, but also closely linked to the oil and gas industry, and the global hot rolled steel plate A36 steel tube industry will also suffer from the "flash collapse" of international oil prices in March.
BBN Steel Company adheres to the marketing concept of "first-class technology, first-class steel quality, and first-class logistics services". It is our goal to build high-quality carbon steel hot rolled steel plate A36, alloy steel plates and high-strength structural steel plate international-class boutique bases. Our logistic team will make customs clearance documents, track products production process, and update shipping information for customers. Creating value for customers is our pursuit.
For the hot pressing of the head, the initial temperature is 930-950℃, and the final pressing temperature (that is, the temperature at the time of demolding) should not be lower than 850℃. If hot rolled steel plate A36 the temperature drops to close to 850℃, it cannot be pressed. It should be quickly returned to the furnace and heated before pressing.
