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Difference Between LSAW and ERW Steel Pipes
"LSAW steel pipe" is a straight seam submerged arc welded steel pipe. Its main process features are:
1. In the process of steel pipe forming, the steel plate is uniformly deformed, the residual stress...
High-pressure Boiler Seamless Steel Pipe
High-pressure boiler seamless steel tube is a kind of boiler tube, which belongs to the seamless steel tube category. The manufacturing method is the same as the seamless pipe, but there are strict re...
Oil Casing String Is An Integral Structure Of Oil Well
Petroleum casing pipe is a special kind of tubing that has been used for a long time. Petroleum casing string is an integral structure of oil wells, which plays the role of strengthening the wellbore,...
Classification of Seamless Steel Tubes
Seamless steel tubes have become very common in life. Do you know how many grades of seamless steel tubes can be pided into?
First, the surface of general hot-rolled seamless steel tube products is F...
Hardness Requirements for Three Main Aspects of Petroleum Casing
Thread parameter parameters limit the anti-sticking performance of oil casing pipe to a great extent. Reasonable control of the thread parameters can fully improve the anti-sticking performance of pet...
Advantages of Acidifying External Thickened Tubing
Various impurities can be reduced into the production layer: after acidifying the conventional oil casing pipe, the wax, rust residue and adherent instruments in the pipe will be brought to the format...
Analysis of Welding Attention Points of Seamless Steel Pipe
What should you pay attention to when welding seamless steel tubes?
1. To prevent the back surface of the bottom bead from being oxidized when performing butt backing, gas back protection is also requ...
Non-uniform Bearing of Oil Casing Reduces its Bearing Capacity
Oil casing pipe damage is one of the important factors affecting China's crude oil production. The reasons for its damage include non-uniform stress, corrosion, sand formation in oil layers, and high-...
Difference Between ERW Steel Pipe and Seamless Steel Pipe
The biggest difference between ERW steel pipe and seamless steel tube is that ERW has a weld seam, which is the key to the quality of ERW steel pipe. Modern ERW steel pipe production technology and eq...
Oil Casing Processing Production Technology
1) Tube appearance inspection
There are two kinds of raw material sources for casing tube blanks, one is seamless tube blank, and the other is ERW tube blank. The above blanks should be inspected as f...
