Seamless steel pipe is made of ingot or solid tube billet by perforation into the capillary, and then by hot rolling, cold rolling or cold dialing made. Mainly divided into: fluid with seamless steel pipe, seamless steel pipe structure, used for conveyin

Seamless steel pipe is generally the molten state of molten steel through the annular slit backlog in after the stretching and other disposal process forming, so there is no weld. The performance, especially the pressure capacity of the ordinary steel pi

Tensile test is to make the seamless steel pipe/tubes into a sample, in the tensile testing machine will be the sample to break, and then determine one or several mechanical properties, usually only the determination of tensile strength, yield strength, e

The hardness test is to determine the hardness of EN 10297-1 C45 seamless steel pipe by slowly pressing a hard indentation head into the sample surface according to the specified conditions, and then testing the indentation depth or size.