Stainless steel seamless pipe is an industrial grade, pickled surface after annealing, it seems white. Mainly used in petrochemical, sewage treatment, machinery manufacturing and other industries.
Inside and outside the polished tube is the surface after polishing the surface polished, looks that kind of bright, gloss is better. 316L stainless steel seamless pipe is mainly used in walking viscous liquid and gas equipment, such as printing and dyeing, pulp and other industries.
Described here is: with industrial-grade 316L stainless steel seamless pipe directly polished inside and outside, polished steel pipe surface finish can not fully meet the requirements of health-class. Only with cold-rolled precision 316L stainless steel tube polished, the inner and outer surface finish of the steel pipe is in line with the national health standards, but the cold rolled precision 316L stainless steel seamless pipe prices higher than the average price of 316L stainless steel pipe many . Of course, when the equipment pressure is not demanding, we usually use 316L stainless steel welded pipe, polished inside and outside as a sanitary level to use the tube.