4.5 stars for hot rolling method in seamless steel pipe production

I would like to give 4.5 stars if there is 5 star for technology of hot rolling method in seamless steel pipe production. Why? I would like to introduce to you for that.

First, cost control would be one of important thing. And hot rolling, with energy consumption reducing features, reduces costs significantly. High plasticity and low deformation resistance of metal can reduce the energy consumption obviously too when hot rolled.

Second, improving of metal's and alloy's processing performance would be the highlight of hot rolling when manufacturers use this method. Breakage of bulky grain in casting by hot rolling would make the crack healing quickly which would decrease or eliminate the casting defects significantly. So this kind of method would improve the processing performance of alloy.

Third, improved production efficiency and rolling speed under hot rolling method would create the situation of rolling process's continuous and automation.