The company specializes in the research and development, production and sales of A514 grade M alloy steel plate seamless pipes, longitudinally welded pipes, large-diameter welded pipes, API 5L welded pipes, spiral welded pipes, and large-diameter thick-walled straight seam steel pipes. The company has A514 grade M alloy steel plate five production lines in three major production workshops: large-diameter longitudinally welded pipe production workshop,A514 grade M alloy steel plate rolled steel pipe production workshop, and thermally expanded steel pipe production workshop, with an annual production capacity of more than 100,000 tons.
Pipeline steel A514 grade M alloy steel plate refers to the hot rolled coil plate or wide thick plate used to transport oil, natural gas and other large-diameter welded steel pipes. In the process of using pipeline steel, it is required not only to have high compressive strength, but also to have high low temperature toughness and excellent welding performance. Pipeline steel plates are used to make oil and gas pipelines. The main A514 grade M alloy steel plate pipeline steel grades are API 5L grade B, API 5L X42, API 5L X60, API 5L X65 and so on.
The wear-resistant layer of A514 grade M alloy steel plate wear-resistant steel plate is mainly composed of chromium alloy, and other alloy components such as manganese, molybdenum, niobium and nickel are added. The carbide in the microstructure is distributed in the form of fiber, and the direction of the fiber is perpendicular to the surface. The microhardness of carbides can reach hv1700-2000 and HRC58-62 respectively. The alloy A514 grade M alloy steel plate carbide has strong stability at high temperature, high hardness and good oxidation resistance. It can be used normally within 500 ℃.
The main applications of normalizing are as follows:① For low carbon steel, A514 grade M alloy steel plate. The hardness of low carbon steel after normalizing is slightly higher than that after annealing, and the toughness is also better, so normalizing can be used as the pretreatment of cutting.② For medium carbon steel, normalizing can be used as the final heat treatment instead of quenching and tempering treatment, or as the preparation treatment before surface quenching by induction heating.③ Normalizing can be used in tool steel, bearing steel, carburizing steel and so on, which can eliminate or inhibit the formation of network carbide, thus obtaining the good microstructure needed for spheroidizing annealing.④ Normalizing can refine the cast structure and improve the machinability of steel castings.
"Adopt standard specification: ASTM, JIS, EN, DINCategory: Structural Steel, carbon steel plate, A514 grade M alloy steel plate, hot rolled plateCarbon steel plate specification: Thickness: 1mm to 200mm; Width: 1500mm to 3500mm: Length: 3000mm to 27000mmThird Party Inspection: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department."
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