News
-
What Is The Difference Between Drill Pipe And Drill Collar?
Both of drill pipe and drill collar are significant oilfield tubular goods. But what is the difference between drill pipe and drill collar? Continue reading to learn more. Drill Pipe: A drill pipe is a long hollow steel tube used to rotate the drill bit and circulate drilling fluid in the well. I...Read more -
Causes of trachoma in welds of spiral submerged arc welded steel pipes
Spiral steel pipe is made of strip steel that is bent in a spiral direction through a rolling machine and then welded by capacitor double-sided submerged arc welding. During the welding production process of spiral steel pipes, many galvanized channel steel problems such as missed welds and misal...Read more -
What is the difference and relevance of steel grades and materials of oil pipes and casing?
Relevance: It is an iron ring used to protect the pipe or to facilitate the installation of the pipe. Difference: Casing is an electric conductor used in electrical equipment or through the wall of an insulating device. An oil pipe is used to transport crude oil and natural gas from the oil and g...Read more -
The difference between 2205 duplex stainless steel pipe and 304 stainless steel pipe
1. Compared with 304 stainless steel, the advantages of duplex stainless steel are as follows: (1) The yield strength is more than twice that of ordinary austenitic stainless steel, and it has sufficient plastic toughness required for forming. The wall thickness of storage tanks or pressure vesse...Read more -
About Astm A53 Seamless Steel Pipe Allowable Deviation Of Outer Diameter Wall Thickness
The allowable deviation of the outer diameter and wall thickness of seamless steel pipes varies depending on the standard being used. In recent years, the use of seamless steel pipes in our country has increased significantly. Due to its wide range of applications, high quality standards are req...Read more -
What materials can be used for the anti-corrosion layer of steel pipelines
The anti-corrosion layers of steel pipelines that are widely used in China include petroleum asphalt, PE jacket and PE foam jacket, epoxy coal asphalt, coal tar enamel, epoxy powder and three-layer composite structure, epoxy coal asphalt cold-wrapped tape (PF type), rubber-plastic epoxy coal pitc...Read more