Yearly Archives: 2022
How to Improve the Yield Rate of Oil Casing Plant?
In the process of rapid heat treatment of steel induction heating, horizontally inclined roller rotation mechanism. The inclination of the device of the roller is wide and the inclination of the devic...
How to Avoid the Surface Decarburization Problem of Q345B Seamless Steel Pipe
The atmosphere that causes decarburization on the surface of Q345B seamless steel tubes is mainly oxidizing gases such as oxygen, water vapor and carbon dioxide. When these oxidizing gases come into c...
ERW Steel Pipe Process Performance Inspection Standards
ERW pipe process performance inspection:
1. Bending test: Bending test should be carried out on steel tubes with an outer diameter less than or equal to 50mm. The bending angle is 90°, the bending rad...
Seamless Steel Tube Manufacturer Product Quality Specification
Usually manufacturers produce the following quality requirements for seamless steel tubes.
1. Chemical composition. Requirements for the contents of harmful chemical elements As, Sn, Sb, Bi, Pb and ga...
Oil Casing Steel Grade and Acceptance Standard
International standard for petroleum casing and tubing: API Spec 5CT
Common steel grades for casing: J55 K55 N80 L80 C90 T95 P110 Q125 V150
Common steel grades for tubing: J55 N80 L80 C90 P110
In add...
What is the Method of Non-destructive Testing of Seamless Steel Pipes?
Non-destructive testing is a method of non-destructive testing of seamless steel tube materials, workpieces or parts. So what is the method of non-destructive testing of seamless steel tubes?
1...
What are the Factors for Short Welding of Oil Casing Pipe?
The oil casing is short-circuited. The reason for this phenomenon is internal mechanical failure, such as roller or shaft eccentricity, or excessive welding power, or other reasons. As the welding spe...
How to Guarantee the Product Quality of ERW High Frequency Welded Pipe
ERW high-frequency welded pipe is a hot-rolled coil that is formed by a forming machine. The skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube b...
Significance of Heat Treatment Process for Oil Casing Pipe
In addition to being used for oil extraction, the emergence of oil casing pipe can also be used as a pipeline for transporting raw materials. In order to enhance the quality of oil casing, every link ...
What Welding Rod is Used for Seamless Steel Pipe? How is the Welding Done?
Seamless steel pipe is the steel pipe with the largest consumption and the highest demand. The production volume and the manufacturer are the largest steel pipe types. In many cases, the competition o...
