The book contains information about titanium and its alloys used in chemical engineering. Titanium corrosion resistance has been reported. Structures of chemical equipment and titanium equipment are considered. Features of machining, pressure treatment and welding of titanium and its low-alloyed alloys used in chemical engineering are described. A description of the devices used for assembling and welding parts and assemblies of chemical equipment made of titanium is given, the features of their design are described.