The EN steel grade S275J2 plates density

The main function of boron in EN steel grade S275J2 plates and so on steel is to increase the hardenability of steel, so as to save other rare and precious metals, such as nickel, chromium and molybdenum. For this purpose, the boron content is generally regulated in the range of 0.001% - 0.005%. It can replace 1.6% nickel, 0.3% chromium or 0.2% molybdenum. It should be noted that molybdenum can prevent or reduce temper brittleness, while boron slightly promotes temper brittleness, so molybdenum can not be completely replaced by boron.

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The large diameter cold drawn seamless steel pipe is a steel pipe with an outer diameter of more than 1000mm. The large diameter seamless steel pipe is made of steel ingot or solid billet through perforation and then hot rolling, cold rolling or cold drawing. If they are long, they need to remove the redundant parts, that is, cut them out. Their length EN steel grade S275J2 plates is suitable for the length required by the construction of steel pipes.

EN steel grade S275J2 plates, Q890D steel plate is quenched and tempered steel for high-strength structure, the implementation standard: GB/T 16270. In the Q890D steel grade, "Q" means yield, "890" means yield value, and "D" means grade level. The equivalent material of Q890D is EN S890Q steel. The size, shape, weight and allowable deviation of Q890D steel plate shall meet the requirements of GB/T709. Q890D steel plate delivery status (heat treatment): quenching and tempering.