Money future for large-diameter seamless steel pipe

　　The out-diameter of seamless steel pipe can be range from 21.3 to 914.4mm. Then what are benefit by using large-diameter seamless steel pipe?

　　First of all, after hot rolling or forging a special heat treatment, large-diameter seamless steel pipe would have no further direct delivery after cooling. Generally speaking, the hot-rolled (wrought) termination temperature is generally 800 ~ 900 ℃, which is unlike the normalizing strict temperature control heating steel pipes so hot rolling seamless steel pipes would have better performance on steel micro-structure and mechanical properties.

　　One more thing, annealing would play an important role in the production process of seamless steel pipes as it would eliminate defects and improve the organization and internal stress left before the procedure and after the procedure to prepare for the organization and performance, alloy structural steel, guaranteed harden-ability structural steel, cold heading steel and so on. Thus, we can get high quality product for our engineering project for strict demands coming from customers.


　　Source:www.xysteelpipe.com