Thermal expansion pipe is a steel pipe processing special way is a hot expanding the use of hydraulic or mechanical means urging the steel pipe from the steel wall along the radially outward dilatation molding pressure processing technology. Mechanical means than hydraulic methods, devices, simple and more power in the world’s leading self-several large-caliber seam welded pipe expanding process control are selected.

A processing method of thermal expansion pipe, is the small-diameter pipe processing a large diameter pipe. Thermal expansion pipe hot-rolled steel mechanical properties than the somewhat less. Limited to the standard steel seamless steel tubes is limited, according to the end-consumer demand thermal expansion pipe so it was born, thermal expansion pipe arbitrary standard model is relatively large, usually based on customer needs and manufacturing, thermal expansion pipe is, we often say the thermal expansion of pipe, the density is relatively low, but shortening a strong steel pipe, (seamless steel pipe) can be referred to as thermal expansion.