Carbon GB stadard of nm500 steel for steel pipe

GB stadard of NM500 steel,The seamless steel pipe for general use is rolled by common carbon structural steel, , low alloy structural steel or alloy structural steel, with the largest output. It is mainly used as the pipe or structural part for conveying fluid. According to different uses, it can be divided into three categories: a according to chemical composition and mechanical properties; B according to mechanical properties; C according to hydrostatic test. If the steel pipe supplied according to class AB is used to accept liquid pressure, hydrostatic test shall also be carried out. The seamless pipes for special purposes include seamless pipes for boiler, chemical power, geological and petroleum, etc.GB stadard of NM500 steel,The company adheres to the "variety, quality and efficiency" road. We have established a technology center, a brand cultivation management system and a quality control system. Now the company has formed an independent innovation system integrating production, learning, research and marketing. Our company has passed ISO9001 quality management system certification and ISO10012 measurement management system certification.The stainless steel 2250 mm wide coil mill has advantages such as adapting to difficult-to-deform steel grades The Liuzhou Iron and Steel Hot Rolling Leveler project designed and supplied by MCC South is equipped with the latest straightening and leveling process (LTP technology) developed by MCC South The performance stability, cost and various consumption indicators have reached the international advanced level,GB stadard of NM500 steel.Q355GNHE corten steel is characterized by adding a small amount of Cu, P, Cr, Ni and other alloying elements to the steel, so that the steel material forms a dense layer between the rust layer and the substrate with a thickness of about 50 to 100 μm and good adhesion to the substrate metal The amorphous spinel oxide layer prevents oxygen and water in the atmosphere from penetrating into the steel substrate, slows down the rust development to the steel material, and greatly improves the steel material's resistance to atmospheric corrosion,GB stadard of NM500 steel.GB stadard of NM500 steel,We should help solve the customer's problems in time, not just verbally, without solving the problems or shirking the responsibility. Improving after-sales efficiency can make customers feel respect. We should take their problems seriously and show sincerity. It can also give customers a good impression and reduce the negative impact.