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Why is galvanized steel pipe corrosion resistant?
Galvanized steel pipe is made by reacting zinc in a molten metal state with an iron substrate to generate an alloy layer, thereby combining the substrate and the plating layer. In the use of galvanizing technology, hot-dip galvanizing of galvanized steel pipe is to pickle the steel pipe first. In...Read more -
Where are alloy steel tubes suitable?
Alloy pipe is a kind of seamless steel pipe. Alloy pipe is divided into structural seamless pipe and high-pressure heat-resistant alloy pipe. The main difference is the production specifications of the alloy pipe and its industry. Annealing and tempering of the alloy pipe changes its mechanical f...Read more -
Three kinds of hardness indicators are commonly used to measure the hardness of seamless steel pipes
Generally, three kinds of hardness indicators, Brinell, Rockwell and Vickers, are used to measure the hardness of seamless steel pipes. 1.Brinell hardness tester In the seamless steel pipe standard, Brinell hardness is the most widely used, and the hardness of the material is often expressed by t...Read more -
The cleaning methods for straight seam welded pipe in welded pipe factory
Nowadays, our application of welded pipes is very extensive, but rust will inevitably occur in the process of using straight seam welded pipes. Rusted straight seam welded pipes will affect its normal operation, so it is found that If it is rusty, it needs to be cleaned in time. Then let’s ...Read more -
Seamless steel pipe
Seamless steel pipe is a long steel with a hollow section and no seams around it. The steel pipe has a hollow cross section and is widely used as a pipeline for transporting fluids, such as a pipeline for transporting oil, natural gas, gas, water, and certain solid materials. Compared with solid ...Read more -
Semless steel pipe price list Dec.2019
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Internal Coating Pipe
Internal Coating Pipe Using epoxy powder coating is for 30 years of history in a foreign country due to the wide range of sources of raw materials, production methods are simple, cheap, good performance, which do not pollute the environment and long service life, so far it is a good anti-corrosio...Read more -
How to Detect the Quality of Spiral Steel Pipe
Spiral steel pipe in the factory should do before the mechanical performance test and flattening test and flaring test, and to meet the requirements of the standard requirements. Spiral steel pipe quality testing methods are as follows: 1, From the surface to judge, that is, in the appearance of ...Read more -
High pressure seamless pipe hydrostatic testing and eddy current testing
First, high pressure seamless pipe quality problems Boilers with high pressure seamless pipe is an important material for manufacturing boiler pipe, the quality of how it will be directly related to the the boiler manufacture of quality so that the quality of the installation and use of quality. ...Read more -
ERW steel pipe price list Dec.2019
ERW steel pipe price list Standard：GB/T3091-2008 specification Thickness GB/T3091 specification Thickness GB/T3091 Q235B Q345B Q235B Q345B 33.4 （1″） 2.1-2.4 604.29 645.71 Φ152 3.0-4.5 597.14 651.43 2.5-3.25 584.29 654.29 4.75-5.75 600.00 651.43 3.5-4.0 594.29 668...Read more -
High frequency welded (hfw) pipe production
High frequency welded (hfw) pipe production process is relatively simple, fast continuous production characteristics in the civil construction, petrochemical, light industry and other sectors have wide applications. Most used for transporting low-pressure fluid or made into a variety of engineeri...Read more -
Disadvantages of galvanized steel pipe
In spite of its many benefits, there are some advantages of galvanized steel pipe. When mixed with yellow brass, galvanized steel triggers dezincification, and it results in electrolytic action when combined with nonferrous metals, such as copper and brass. Galvanized steel should never be used u...Read more