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Packaging and storage of oil casing
According to the American Petroleum Institute standard APISPEC5CT 1988 1st edition, casing steel grades are H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P- There are 10 types of 110 and Q-125. The casing should be supplied with threads and couplings, or in any of the follow...Read more -
Application scope and adaptability conditions of plastic-coated steel pipes
Application scope of plastic-coated steel pipe: (1) Coal mine system: underground mine water supply and drainage, fire sprinkler, underground shotcrete, positive and negative pressure ventilation gas drainage, and other pipe networks. (2) Heating network water delivery system:...Read more -
What is the stress condition of spiral steel pipe during the extrusion process
(1) During the extrusion process, the temperature of the lining of the spiral steel pipe continues to increase as the extrusion process proceeds. At the end of the extrusion, the temperature in the area of the inner wall of the lining close to the extrusion die is relatively h...Read more -
Things to note when installing stainless steel pipe fittings
The use of flat joints for stainless steel pipe fittings requires high pipe quality, as well as the outer diameter ovality, wall thickness, and physical properties of the rubber ring of cast iron drainage pipes. Since the flat joints have poor watertight performance conditions...Read more -
The difference between fixed length and indefinite length of Q235A spiral steel pipe
The length of steel pipes for pipelines, but for the convenience of users, when the steel pipes are sold at any time, the Q235A spiral steel pipes are produced with variable length pipes within the standards, but when the actual order is made, the standard length steel pipes a...Read more -
Precautions for using stainless steel flanges
Although stainless steel flanges have unique advantages in terms of material, no matter how good they are, they still need to be used with caution, so that they can be used for a longer period. So what should you know about the specific use of stainless steel flanges? 1. To pr...Read more -
The scope of application of epoxy resin coated steel pipes
Epoxy resin-coated steel pipe coating is a thermosetting plastic that combines the common advantages of steel and plastic. Its scope of application includes 1. Fire sprinkler system and domestic water supply and drainage; 2. Gas drainage, mud transportation, and ventilation sy...Read more -
Which is better, spiral welded steel pipe or welded steel pipe
1. The materials are the same but the uses are different, so there is no question of who is better. 2. Spiral welded steel pipe refers to a steel pipe with seams on the surface, which is made by bending and deforming steel strips or steel plates into circular, square, and othe...Read more -
What are the insulation methods for anti-corrosion steel pipes
Anti-corrosion steel pipe is a common steel pipe. To slow down and prevent the steel pipe from corroding and depreciating under the chemical and electrochemical effects of internal and external media, or due to the metabolism of microorganisms, it is necessary to do a good job...Read more