Several problems in the rapid development of shaped steel tube

Due to the wide range of application of shaped steel tube, which promotes the rapid development of the production of shaped steel tube.

Common defects of steel pipe

First, the inner surface defects
1 internal fold
Features: in the inner surface of the steel pipe is a straight line or a spiral, a half - Helical zigzag defect.
Cause of production:

The identificThe identification method of steel pipeation method of steel pipe

Method for the identification of steel pipe
1 fake steel pipe prone to collapse.
Folding is a kind of broken line formed on the surface of steel pipe, which often runs through the whole product. Folding is due to shoddy manufacturers to pursue high efficiency, pressure amount slants big, produce Erzi, a rolling produced folding, folding products after bending will crack and the strength of steel big decline.

Hot bending method for stainless steel pipe fittings

Stainless steel pipe fittings in heating condition, to bend called hot bending. The bending of the stainless steel pipe fittings and can be divided into sand filling without buckling of hot bending and buckling is not filling sand hot bending.

Hydraulic and Instrumentation Stainless Steel Tube By yaang.com

Precision stainless steel tube,selected prime raw materials, cold drawn and cold rolled, tight tolerance in OD/ID clean and smooth surface on OD/ID, Withstand high pressure, no deformation after cold bending, no crack and break after flattening and flaring. widely used in the following fields:Hydraulic and instrumentations Precision mechanical engineering Automotive Industry

Steel Tube Pipe Classification By yaang.com

I Steel Tube Classification
1、according to production methods classification
（1）seamless pipe - hot-rolled pipes, cold-rolled pipes, cold-drawn tubes, extruded tubes, pipe jacking
（2）Welded Pipe
（a）in accordance with sub-processes - arc welded pipe, ERW pipe (high frequency, low frequency), gas pipe, furnace pipe
（b）by weld points - Longitudinal Welded Pipe, Spi Welded Pipe

U Tube Heat Exchanger By yaang.com

U Tube is Designed for high temperature applications, especially steam condensing or hot oil system. Thïs model is selected when differential expansion make fixed tube sheet exchanger unsuitable and when preclude floating head type HPF selection.
- Design Pressure 12 bar(g)
- Design Temperature -20°C to +250°C
- Size range 80 thru 250dia, up to 6m long