Our plate A573gr.70 high strength structural steel pipeline steel has once again helped the construction of the China-Russia East Line Natural Gas Pipeline. During 2017 - 2018, the company successively supplied more than 10,000 tons of high-grade pipeline steel materials for the northern section of the Sino-Russian Eastern Gas Pipeline project, helping the northern section of the plate A573gr.70 high strength structural steel project to be successfully completed. Now we reload the task and will provide API 5L X80 high-grade pipeline steel for the middle section of the China-Russia Eastern Gas Pipeline project.
In the use of wear-resistant plate, plate A573gr.70 high strength structural steel, according to the different working environment, the severity of friction and wear is different. Moreover, the wear mechanism is different with different materials and working conditions. The well-known wear mechanisms include adhesive wear, corrosion wear, fatigue wear, erosion wear, fretting wear, impact wear and so on. The corrosive wear of wear-resistant plate refers to the chemical reaction or electrochemical reaction between the workpiece and the environmental medium to form corrosion products.
plate A573gr.70 high strength structural steel, No. 20 steel belongs to high-quality carbon steel.No. 20 steel means steel with an average carbon content of 0.20%;The thermal conductivity of No. 20 steel at 315℃is 48 W/m℃;No. 20 steel is generally not quenched, the general treatment method is carburizing or normalizing;The yield strength of No. 20 steel is not less than 250MPa;The tensile strength of No. 20 steel is not less than 420MPa;Elongation of No. 20 steel is not less than 25%;The reduction of area is not less than 55%;The density of plate A573gr.70 high strength structural steel and No. 20 steel is 7.85kg/cm3
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