What is the difference between seamless steel pipe and seamed steel pipe?

In terms of process. Seamless pipe is rolled once, with round steel heating, piercing, hot rolling, sizing, and straightening production out.

Seamless steel pipe also called welded steel pipe referred to as welded pipe, is a steel plate or steel strip bending deformation to weld, there are straight seam welded pipe and spiral welded pipe, you can clearly see the weld bars, seamless steel pipe does not.

Some seamless steel pipe has to do in addition to welded rib seamless processing, careful observation can be seen traces. Seamless steel pipe pressure in about 10, seamless steel pipe higher. Seamless steel pipe can be used for low-pressure fluids, seamless pipe can be used for high-pressure (according to the specifications of the standard material is different). Seamless steel pipe is mainly used in construction; seamless steel pipe is mainly used in machining and fluid transport. Seamless steel pipe is basically stronger than seamless steel pipe in all applications. Seamless steel pipe price is higher than seamless steel pipe.