1, the two production process is different

Spiral steel pipe is called spiral welded pipe. For spiral steel pipe, the use of automatic double-wire submerged arc welding process, strip as raw materials, often using warm extrusion molding, double-line double-end automatic submerged arc welding process, the surface of the spiral seam, called spiral welding.

Rebar steel pipe refers to the outer surface of the steel pipe pressed by the embossing equipment. The threaded tube, also known as the low-ribbed tube, mainly relies on the outer ribbed tube (the rib coefficient is 2-3) to expand the heat transfer area, which is usually used for the case that the heat transfer coefficient inside the tube is more than twice that outside the tube.

2, the performance characteristics of the two are different

The spiral tube has good resistance to bending.

Stainless steel threaded tubing is an environmentally friendly product that replaces traditional carbon steel, aluminum and copper products. The product has long service life, beautiful appearance, acid and alkali resistance and corrosion resistance. Rebar pipe also has a good strengthening effect on condensation and boiling outside the pipe due to surface tension. The combination of threaded tube and baffle can not only reduce the vibration problem of the heat exchanger, but also the coefficient of the cross-flow heat exchanger is about 30% higher than that of the curved baffle, and the bundle pressure is about 50% lower.

3, the two applications are different

Spiral steel pipe is mainly used in oil drilling, geological drilling, shipbuilding, machinery manufacturing, aircraft and vehicle manufacturing, national defense industry and daily light industry.

Rebar steel pipe is widely used in chemical industry, construction, boiler manufacturing, heat exchange refrigeration equipment and low pressure steam pipe. Ideal for equipment manufacturers.

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