Production News
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plate flange
Plate flat welding flange (chemical standard HG20592, national standard GB/T9119, mechanical JB/T81): convenient to take materials, simple to manufacture, low cost, widely used; However, the rigidity is poor, so it cannot be used in chemical process piping systems and high-altitude and extremely ...Read more -
What are the differences between 304 flange and carbon steel flange
Many people do not know what kind of material to choose when buying flanges, you like stainless steel flange has 304, 316 and other materials, carbon steel flange has 20 steel, 45 steel, Q235 and so on, as the manufacturer today to tell you about our common 304 flange and carbon steel flange diff...Read more -
Synthesis of surface-active triazine derivatives and their corrosion inhibition properties on carbon steel
Acid solution is widely used in petrochemical, chemical cleaning, pickling and scaling and other industrial processes, resulting in serious metal corrosion problems. In order to improve the service life of industrial equipment and reduce industrial costs, it is necessary to carry out metal corros...Read more -
Finite element analysis of fatigue life of 90° elbow of large-diameter direct buried heating pipeline
With the continuous expansion of the scale of central heating, large-diameter and high-pressure direct-buried heating pipes have been widely used, and the pipe diameter has reached DN1400. However, there is no clear stress calculation method standard for large-diameter directly-buried pipes in Ch...Read more -
Forged carbon steel flange product advantages
Forging has always been the dominant product in the industry, the same type of product, the same material of high pressure flange product prices will appear obvious gap, this is because the production of high pressure flange technology is different, there are basically two kinds of high pressure ...Read more -
GB/T12459-2017 (Specification Appendix) Design Verification Test
Affiliated A (Specific appendix) Design verification test A.1 The test required When the manufacturer uses the verification test method to identify the design of the pipe parts, the verification test shall be performed in accordance with the provisions of this appendix.The test should be carried ...Read more