The seamless steel casing pipes are directly connected by threads, and the male end is connected to the female end. When connecting, the reliable performance of the sealing of the casing thread position is a key factor to ensure the normal production of the oil well. The sealing structure of the new type of threaded oil casing is sealed…
Read MoreAccording to different production methods, seamless pipes (smls pipe) can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes.Since seamless pipes are often in high temperature and high pressure conditions when they are used, seamless pipes are mainly used to make superheater tubes, reheater tubes, steam guide tubes, and main steam seamless tubes for high pressure…
Read More1. Spiral submerged arc welded steel pipe (SSAW) and longitudinal submerged arc welded steel pipe (LSAW) In the 1950s and 1960s, spiral steel pipes were widely used in oil and gas pipelines. In the 1970s and 1980s, they were severely challenged by longitudinal submerged arc welded steel pipes (LSAW steel pipe) and ERW steel pipes. So far, spiral steel…
Read MoreMade by superior carbon steel, structural steel and stainless heat resistant steel, alloy steel pipe is formed by hot rolling or cold rolling. And due to the material of alloy steel pipe, it has superior alloy steel pipe features. It can work under the high temperature, high pressure, and it can even endure sulfur attacks, organ acid corrosion. Due…
Read MoreToday we will talk about the difference between 3pe anticorrosive steel pipe and epoxy coal asphalt anticorrosive steel pipe. 3pe anticorrosion and epoxy coal asphalt anticorrosion are two commonly used forms of steel pipe outer wall corrosion protection. The anticorrosion effect of 3pe anticorrosion steel pipe is better than epoxy coal asphalt anticorrosion steel pipe. Why do we say…
Read More1. Pollution and corrosion resistance Corrosion is the main enemy of metal pipes. The outer surface of steel, iron and concrete pipes is degraded by soil and ultraviolet rays. The inner walls of pipes made of other materials are prone to rust, be damaged by wear or accumulate debris. However, due to the corrosion resistance of stainless steel, this…
Read More1. In order to prevent the corrosion between the eyes due to the heating of the flange cover, the welding current should not be too large, the arc should not be too long, the interlayer cooling is fast, and the narrow weld bead is suitable. 2. The electrode should be kept dry when used to prevent the electrode from…
Read MoreElbows are used to change the direction of the pipe. The bending angles of commonly used elbows are 90 °, 45 ° and 180 °. The 180 ° elbow is also called a U-shaped elbow. There are also elbows with special angles, but the number is very few. 1. Cast iron elbow Malleable cast iron elbow is the most…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
