Shortcomings of Duplex Stainless Steel Pipe

Compared with austenitic stainless steel pipe, duplex stainless steel pipe's shortcomings are as follows:1) the universality of the application and multi-faceted as austenitic stainless steel, for example, its use temperature must be controlled at 250 degrees Celsius.2) its plastic toughness than the austenitic stainless steel low, cold, hot processing technology and forming performance as austenitic stainless steel.3) the existence of moderate temperature brittle area, the need for strict control of heat treatment and welding process system to avoid the emergence of harmful phase, damage performance.Hunan Great Steel Pipe Co.,Ltd is a world-class production and service provider of submerged arc straight seam welded pipe as the first subsidiary of Shinestar Group. Hunan Great Steel Pipe Co.,Ltd pays more attention to in the pipeline engineering research areas as a pioneer of China Petroleum Pipeline & Gas Pipeline Science Research Institute, Such as: the use of oil and gas pipelines, pipe welding technology innovation, high-end plumbing materials research and development, as well as special tools technological innovation pipeline construction, pipeline corrosion protection science and technology research, science and technology research pipeline non-destructive testing, pipeline quality assessment, and research pipeline standards and so on. In the future, we will try to use new technology to create new business value and to contribute to research and product development for the pipeline.

Quality products as competitiveness of Hunan Great Steel Pipe Co.,Ltd. Our main products include: carbon steel seamless pipe, carbon steel welded pipe, stainless steel pipe, pipe fittings, which is variety types and full range specifications, moreover, strictly in accordance with international standards, like: ISO certification, API certification, CE certification. At the same time, we are able to offer value-added steel services, including: hot dip galvanized, anti-corrosion treatment, pipe cutting, or other customized services.So far, the quantities of export products from Hunan Great Steel Pipe Co.,Ltd has been up to 10 million tons covering more than 100 countries or regions, and are widely used in aviation, aerospace, defense equipment, oil exploration, engineering machinery, automobile, railway, rolling stock, new energy and other industries. Currently, Hunan Great Steel Pipe has been successfully involved in many welded pipe project and even become a professional products specialist in the global.