Working Principle and Applications of Multi-Roll Cold Rolling Pipe Mill
### Working Principle and Applications of Multi-Roll Cold Rolling Pipe Mill A **cold rolling pipe mill** is a piece of equipment used for cold rolling of hollow tubes using a ring-shaped die. This machine is particularly effective for initial rolling and for producing seamless tubes with common accuracy, including non-ferrous metals. The most notable feature of cold rolling pipe mills [...]
Company Successfully Smelts Gr60 Grade Steel
In accordance with the Chairman's directive of the "Eight Improvements" spirit, the company has been continuously increasing its efforts in the development and production of specialty steel. Recently, the company successfully smelted the new Gr60 steel billet, providing strong support for further market expansion and brand building. Gr60 grade steel is the primary material used for fasteners such as bolts [...]
Independently Innovated Controlled Rolling and Cooling Technology and Equipment for Pipes, Leading the Technological Upgrade of Steel Pipe Production
Hot-rolled seamless steel pipes are irreplaceable, high-safety basic raw materials used in nuclear and thermal power, oil and gas drilling, equipment manufacturing, and other fields. However, due to the high-temperature hot rolling process and the annular cross-section, the controlled rolling and cooling (CR+CC) technology, which is widely applied in the plate industry, is difficult to apply in hot-rolled seamless [...]
Baosteel Launches Domestic First: 98mm Extra-Thick, Ultra-Wide, High-Performance S31603 Stainless Steel Plate for Pressure Vessels
Baosteel Launches Domestic First: 98mm Extra-Thick, Ultra-Wide, High-Performance S31603 Stainless Steel Plate for Pressure Vessels According to Baowu Steel Group, Baosteel’s Heavy Plate Business Unit recently successfully delivered a domestically first-of-its-kind 98mm thick, 3000mm wide, extra-thick, ultra-wide, high-performance S31603 stainless steel plate for pressure vessels, rolled directly from large steel ingots. With the implementation of the national "14th Five-Year Plan" [...]
Medium-Frequency Hot Expansion Process for Seamless Steel Pipes
The medium-frequency hot expansion process is applied to large-diameter seamless steel pipe production. It was unprecedented in the industry at the time and not initially accepted by the domestic market. As the first to adopt this technology, the company faced significant resistance during the initial product launch and promotion. The company's chairman took an innovative approach by first entering the [...]
Introduction to Seamless Steel Pipe Standards
Introduction to Seamless Steel Pipe Standards 1. Structural seamless pipes (GB/T8162-2008) are used for general structural and mechanical purposes. 2. Fluid transport seamless steel pipes (GB/T8163-2008) are for transporting water, oil, gas, and other fluids. 3. Low and medium pressure boiler seamless steel pipes (GB3087-2008) are used for manufacturing various low and medium pressure boiler superheated steam pipes, boiling [...]