p355gh chemical composition impact energy values

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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 P355GH chemical composition the temperature drops to close to 850℃, it cannot be pressed. It should be quickly returned to the furnace and heated before pressing.

Our quality control department will do inspection for details of the steel materials p355gh chemical composition before delivery. We would invite the customer side to attend the inspection together. If they can not come, we will also take rich pictures for them to check. Meanwhile, we will publish inspection report and send them the PDF version. Besides, we accept any third party inspection such as SGS, BV, etc. And our quality control department will support the third party to inspect the steel materials smoothly and try our best to deliver the qualified steel materials to customers earlier.

Q345R steel is common low alloy steel, which is commonly used for boiler and pressure vessel. The delivery status includes hot rolling or normalizing. Q345R steel yield strength is 265-345MPa, tensile strength is 510-640MPa, elongation is greater than 21%, and zero degree V-shaped impact energy is greater than 34J. Q345R steel standard is GB713. Q345R steel has good comprehensive mechanical and technological properties. The content of p355gh chemical composition phosphorus and sulfur of Q345R steel is slightly lower than that of low alloy high strength steel plate.

Hot rolling and cold rolling are all the processes of forming steel plates or profiles, which have a great influence on the structure and properties of steel. The rolling of steel is mainly hot rolling, and cold rolling is usually used to produce small size steel and thin plate. With the development of new technologies such as the precision of hot rolling size, shape and surface quality and the continuous emergence of new products, p355gh chemical composition, hot rolled steel strip and steel plate are widely used and have more and more competitive strength in the market.