Liaocheng in Shandong Steel Pipe Manufacturing Co. Polygram provide you with non-standard steel pipe, non-standard steel pipe with respect to the Chinese national standard seamless steel pipe shaped in terms other than the national standard, and in the production of seamless steel pipe in accordance with national regulatory requirements to the size of the diameter, wall thickness classification, 16mn steel and allow a certain degree of error, error referred to the national standard in the standard range. In practical use, often national standard specification has some limitations, which corresponds to the emergence of non-standard seamless, non-standard steel pipe specification is to supplement the national standard specifications and the production of seamless steel tubes, not He said worse than the national standard seamless quality. In the production of non-standard steel pipe, steel pipe, some with national standard seamless steel tube or round as production, because of the small sales volume, prices tend to be higher than the normal national standard seamless steel pipe, but there are drawbacks non-standard seamless steel pipe, because no fixed standards, 16 manganese steel, some manufacturers to use two seamless steel scrap or defective as seamless tube, so the price is cheaper. So often non-standard seamless steel price instability, the product quality is uneven. Non-standard steel pipe commonly used materials are: 20 #, 45 #, 16Mn (Q345A, B, C, D, E) 27siMn, 20cr, 40cr Polygram and other Liaocheng Steel Pipe Manufacturing Co., Ltd. is China Petroleum and Chemical Corporation supplies Armament Department designated the China Petrochemical alloy steel pipe distribution center, China National Petroleum Corporation a supply network companies. Professional management of various imports, domestic steel, stainless steel, carbon steel pipe, plate, bar, profile, pipe fittings and welding materials, to provide support (pipe fittings) materials for the oil, chemical and power industries. The company's main pipe imports from Japan, the European organization,, JFE China Jiangsu agents, and establish long-term friendly and cooperative relations with Japan's Sumitomo joint venture with the German unit DMV and 蒂森曼内斯曼 companies. At the same time with the domestic Shanghai Baoshan Iron and Steel, Panzhihua Iron and Steel Group in Chengdu, Tianjin Seamless Steel Tube Plant, Hengyang Steel, WSP, Zhenda Steel Plant, Jiangsu Changqiang Group and other large enterprises to establish a good business relationship, 2003 as Chengdu Iron & Steel Co., Ltd. high-pressure steel pipe China market sales agent. Good reputation, smooth purchase channels, in strict accordance with design requirements and technical standards want to provide users with different materials, different specifications of the various materials. Large indoor warehouse can store more than 8,000 tons, Q345C steel, all year round with all kinds of steel pipe, stainless steel and other steel materials, more than 5000 tons. The company's sales for three consecutive years continued to grow more than 30% of the rate, 2007 may be more than 200 million yuan. The company is equipped with a full range of physical, chemical and mechanical properties testing equipment, has made non-destructive testing and certification and boiler tubes to generate a license; passed the ISO9001: 2000 quality system certification; Liaocheng City contract and trustworthy enterprises, banks AAA-credit business. Alloy according to what classification? Iron as the basic elements, adding one or more reinforcing steel alloying elements, called alloy. Classification of alloy steels have many of the most common methods are the total amount of alloying elements in steel classification and by the use of steel two ways to classify, according to the steel alloy elements of total points, then there is a low alloy steel, alloys steel and high alloy steel. Press steel zoning can be divided into structural steel, tool steel, tool steel, stainless steel, acid-resistant steel and so on, can consult the specific Liaocheng in Shandong Steel Pipe Manufacturing Co., Polygram Learn more detailed information. Pipe | Q345A steel | 16mn steel pipe provided by the Shandong Liaocheng Steel Pipe Manufacturing Co. Polygram. Liaocheng in Shandong Steel Pipe Manufacturing Co. Polygram (www.lcbljgg.com) (www.lcbljgg.com) (www.sdlcblj.com) (www.bljggzz.com) Shandong Liaocheng, wire, pipe, plate manufacturing equipment leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Polygram steel leader with the staff warmly welcome all inquiries negotiations to create Polygram steel better future.