Recently, Shougang Jingtang successfully completed the delivery of anti-acid pipeline steel for medium and thick plates. After being processed into pipes by a renowned Indian pipe manufacturer in the global pipeline industry, it was used in the largest gas field gas transmission project in Dubai.

Anti-acid pipeline steel is primarily used in the manufacturing of oil and gas pipelines for transporting special oil and natural gas rich in acidic media. This type of product has extremely high requirements for key performance indicators in resisting acidic gas corrosion, stringent requirements for inclusion content, and significant difficulties in smelting and microstructure control. The rolling process differs fundamentally from that of ordinary pipeline steel. Currently, only a few large steel enterprises in China have the capability to mass-produce the entire series.

Shougang Jingtang and Shougang International seized market opportunities, accelerated product upgrades and structural optimization, fully developed and expanded the marketing channels for pipeline steel, provided specialized and personalized services, and maximized service to end users. This supply adopts a service model, where according to customer needs, Shougang Jingtang collaborates with the Technology Research Institute to provide overall solutions through technological innovation.

High-grade acid-resistant pipeline steel possesses high strength and toughness performance matching, low cold crack sensitivity coefficient, excellent weldability, and resistance to hydrogen sulfide and stress corrosion. In this order, the process control range for high-grade acid-resistant pipeline steel is narrow, making it extremely difficult to control. During this period, the manufacturing department, medium and heavy plate division, steel rolling department, quality supervision department, sales management department, and technical center of Shougang Jingtang, along with the Shougang Technology Research Institute, stock marketing center, and Shougang International, collaborated efficiently to carry out customized product development and research. A new composition system was designed, multiple production contingency plans were formulated, ensuring the control of harmful element content in the steelmaking process and the internal quality of the ingot, and optimizing the rolling model and process, precisely controlling key process parameters, to ensure the performance and surface quality of wide-specification products.

Upon inspection, the product successfully passed the most critical test for resistance to acidic gas corrosion, with all performance indicators meeting the standard requirements. This achievement fulfills the specific needs of the international pipeline steel market and individual customers, marking a new breakthrough in the field of acid-resistant pipeline steel.

High-grade acid-resistant pipeline steel for export to Dubai was delivered as scheduled, meeting the high standards required by users, earning the trust of customers, further expanding the overseas pipeline market, and enhancing the international market influence of the Shougang brand. Currently, Shougang's medium and heavy plate pipeline steel has achieved full coverage of grade-products, with stable large-scale supply for the following grades. The product types include steel for pipeline engineering, anti-deformation, anti-corrosion, station steel, and hot-bending steel. The pipeline steel products have been supplied to projects such as the West-East Gas Transmission Project, the China-Myanmar anti-deformation pipeline, the Central Asia pipeline, the China-Russia Eastern Line, the New Gas Pipeline, and the Oman acid-resistant pipeline project.