Baosteel Successfully Trial-Produced The First Hot-Rolled Large-Diameter Titanium Alloy Seamless Tube With a Wall Ratio Of Large Diameter in China

Recently, Baotou Iron and Steel (Group) Co., Ltd. (here in after referred to as “Baotou Iron and Steel”) successfully trial-produced titanium alloy seamless pipes with an outer diameter of 406mm and a wall thickness of 16mm grade of TA10. This is the first large-diameter titanium alloy seamless pipe produced by hot rolling process in China. The diameter-to-wall ratio seamless pipe.

Titanium alloy tube blanks are expensive, and only one is fed in this trial production. Faced with the narrow thermal deformation temperature window of titanium alloy materials, perforated easy-to-card steel, and high product surface quality requirements, Baosteel has overcome the technical difficulties of titanium alloy hot-rolled seamless pipes through preliminary technical discussions and careful planning. The temperature retention of the whole process, the deformation rate of the perforator and the quality control of hot-rolled seamless pipes, and the one-time trial production was successful.

The one-fire forming process used by Baosteel in the production of titanium alloy seamless pipes with large-diameter-to-wall ratios can not only improve the production efficiency and yield of titanium alloy seamless pipes produced by the hot rolling process, but also effectively ensure the application performance of titanium alloy seamless pipe products. Performance. The successful trial production this time proves the advanced technical level of Baosteel in the field of seamless pipes, and it also provides technical reserves and pioneering power for high-quality development.