Thermal expansion seamless steel pipe is what we often call thermal expansion pipe. Steel pipes with relatively low density but strong shrinkage (seamless steel pipe) can be referred to as thermal expansion pipes. A rough pipe finishing process that uses cross-rolling or drawing to enlarge the diameter of the pipe. Enlarging the outer diameter of steel pipes in a short period can produce non-standard and special types of seamless pipes with lower costs and high production efficiency. This is the development trend in the field of international pipe rolling.

Thermal expanded seamless steel pipe: GB/T3087-2018
Thermal expansion seam steel pipe (seamless steel pipe): GB/T3091-2018.
my country’s current thermal expansion pipe production standards: thermal expansion seamless steel pipe: GB/T3087-2018

Large diameter welded pipe, seamless steel pipe, hot rolled steel pipe, seamless expanded pipe, seamless pipe
Boilers, heat exchangers, spiral steel pipes, water pipes
Steel pipe manufacturer, straight seam double-sided submerged arc, Q235, Q345 material
Gas transmission pipes, engineering pipes, hot rolled pipes, seamless steel pipes (seamless pipes),
Straight seam steel pipe (straight seam welded pipe), thermally expanded steel pipe, seamless pipe, power pipeline steel pipe,
Construction steel pipes, boiler accessories steel pipes, chemical refrigeration steel pipes, air conditioning special steel pipes,
Spiral steel pipe, straight seam welded pipe, large diameter straight seam double-sided submerged arc welded steel pipe, straight seam welded pipe
Hot burning pipe, welded pipe, seamless pipe, drainage steel pipe, gas transmission steel pipe, national standard steel pipe
Seamless pipe expansion, hot-rolled seamless steel pipe, cold-rolled stainless steel pipe