S500Q steel equivalent hot rolled carbon steel round bar

Q370R Pressure Vessel Steel: Steel used to manufacture pressure vessels in petrochemical, gas separation, gas storage and transportation equipment. It is required to have sufficient strength and toughness, good welding performance and hot and cold processing performance. The commonly used steels S500Q steel equivalent are mainly low-alloy high-strength steel and carbon steel. Q370R implements the domestic standard GB713-2008.

The primary purpose of adding alloy elements into steel is to improve the hardenability of steel and to ensure that martensite can be easily obtained during quenching. The second is to improve the tempering stability of the steel, to keep the martensite at a higher temperature, so that the carbide precipitated in the tempered steel is finer, uniform and stable. In this way, under the same conditions, S500Q steel equivalent, alloy steel has higher strength than carbon steel. One of the main purposes of adding alloy elements is to improve the strength of steel.

Quenching is a heat treatment process in which steel parts are heated to above the critical temperature, and after proper heat preservation, the parts are quickly cooled to room temperature in water or oil, so that martensite transformation occurs. The hardness of the quenched S500Q steel equivalent increases sharply. Quenching is to prepare the organization for adjusting and improving the performance of S500Q steel equivalent during tempering, while tempering determines the performance and life of the workpiece.

The 365 day service system is implemented, and the business, loading and delivery are handled as usual in holidays and festivals. Actively help users solve difficulties. When users encounter difficulties in handling business, they should actively coordinate with the external solution; if they need to solve the problems internally, they should solve them in a timely manner without prevarication and wrangling. In line with the S500Q steel equivalent principle of "fairness, justice and timeliness", coordinate with relevant departments and deal with all kinds of objections in a timely manner.

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