How to identify the shoddy steel pipes

Steel pipe and human life, production activities are inseparable, steel pipe production in the steel industry occupies an irreplaceable position. From people’s daily utensils, furniture, water supply and drainage, gas supply, ventilation and heating facilities to the manufacture of various agricultural appliances, the development of underground resources, national defense and aerospace guns, bullets, missiles, rockets, […]

Spiral steel pipe exports gradually occupy market position how its market advantages

As a major basic material for the building materials industry, steel pipe in our domestic demand are very large, and this year, the export of spiral steel pipe is gradually occupying the market position, its industry development trend is fierce, so that people can not help but think: spiral steel pipe compared to ordinary steel […]

Decipher for you the production process of 3PE anti-corrosion research steel pipe with high quality service

3PE coated steel pipe substrate material includes a spiral pipe, seamless and straight pipe joints. 3PE anti-corrosion seamless steel pipe substrate and molten plating liquid occurs in a complex physical and chemical reaction, the formation of a tightly structured zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel […]

Fracture characteristics of spiral pipe

1, along the spiral tube in different directions to take samples for tensile testing and impact testing, found that the yield limit and strength limit of the test in different directions is very small difference, generally only in the range of 5-10%, while the cvn value of different directions of specimens vary greatly, cvn value […]

What are the anti-corrosion means of spiral welded pipe

Because of the large mass of spiral welded pipes, they must be stacked outdoors, but it is difficult to avoid being exposed to the sun and rain, so the problem of rust has been plaguing the storage time and conditions of spiral welded pipes. Therefore, it is necessary to provide a comprehensive answer to the […]

Anti-corrosion steel pipe for electrostatic anti-corrosion coating selection

The effect of electrostatic spraying of anti-corrosion steel pipe depends not only on the electrostatic spraying equipment and management techniques, but also consider whether the coating varieties used meet the requirements of electrostatic spraying. Electrostatic spraying requires a low resistivity of the coating, the value of 5 to 50MΩ/cm is more appropriate. In addition to […]

Spiral steel pipe hot processing considerations

If oil is attached to the surface of the workpiece during heating, the thickness and composition of the oxide skin on the oil-attached part is different from that of the other parts, and carburization will occur. The part of the base metal under the oxide skin that is carburized will be seriously eroded by acid. […]

How to test the quality of spiral steel pipe

Spiral steel pipe in the factory should be done before the mechanical properties of the test and flattening test and flaring test, and to reach the requirements of the specification rules. Spiral steel pipe quality inspection methods: from the appearance of the judgment, that is, in the appearance of the inspection. Appearance inspection of welded […]

What material should be used for anti-corrosion spiral steel pipe

Solvent-free epoxy coatings with low viscosity curing agent, cured coating has outstanding anti-corrosion function, hardness resistance and denseness. And there is a relatively suitable use period and curing time. In addition to the insulating property and excellent chemical stability of solvent-free epoxy coating, the coating has made great progress in adhesion, resistance, impact strength and […]

How to classify anti-corrosion steel pipe

Anti-corrosion steel pipe is a commonly used carrier for oil and gas transmission, one of the important facilities of ground engineering. It is a steel pipeline that can effectively prevent or slow down the corrosion phenomenon by chemical or electrochemical reaction during transportation and use after processing by anti-corrosion process. Anti-corrosion pipeline is the link […]