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The difference between hot simmering steel bending pipe and cold simmering steel bending pipe
The process is as follows: after the straight pipe is cut, an induction coil is put on the bending part of the steel pipe through a steel bending pipe pushing machine, a mechanical rotating arm is used to clamp the pipe head, and a medium-frequency current is passed into the induction coil to hea...Read more -
Are generally spiral steel pipes made of Q235
Commonly used spiral steel pipes do not use Q235 material. Commonly used spiral steel pipe materials in China generally include Q235A, Q235B, Q345, L245, L290, X42, X52, X60, X70, X80, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb materials. Spiral pipes, also called spiral steel pipes or spira...Read more -
Classification of welded steel pipes and the uses and advantages of different welded steel pipes
Welded steel pipes can be classified into different types and types according to different classification methods. Welded steel pipes of different properties have different characteristics and characteristics in use and show different use values in use. Welded steel pipes can be divided into the ...Read more -
What is the difference between an ERW welded steel pipe and an ordinary welded steel pipe
“ERW welded steel pipe” is a straight seam resistance welded pipe, abbreviated as ERW. It is used to transport vapor and liquid objects such as oil and natural gas and can meet various requirements of high and low pressure. It currently plays a decisive role in the field of transporta...Read more -
What is the difference between HFW steel pipe and ERW steel pipe
The main difference between ERW (straight seam resistance welding) and HFW (high-frequency welding) is the different principles. As the name suggests, resistance welding is a method in which pressure is applied through electrodes after the welding parts are assembled, and the resistance heat gene...Read more -
What are the advantages of 304 stainless steel pipe fittings
① Advantages of material performance: Thin-walled stainless steel water pipes are made of stainless steel as the name implies. The strength of stainless steel is 3 times that of copper pipes and 8 to 10 times that of PPR pipes. It can withstand the impact of high-speed water flow of 30 meters per...Read more -
Spiral steel pipes can be divided into several categories according to their uses
There are roughly four categories of spiral steel pipes according to their uses: spiral steel pipes for drainage, spiral steel pipes for dredging, spiral steel pipes for piling, and spiral steel pipes for oil and gas. Spiral steel pipe for drainage Materials of spiral steel pipes for drainage: Q2...Read more -
What are the specifications of seamless steel pipes
Seamless steel pipe DN219*6 represents a seamless steel pipe with a nominal diameter of 219mm and a wall thickness of 6mm. DN stands for nominal diameter, nominal diameter, also known as average outer diameter. Refers to the standardized diameter series of containers, pipes, and accessories. The ...Read more -
Steel bending pipe calculation and blanking
Before performing steel bending pipework, you must first calculate the unfolded length of the bent section of the pipe and mark the starting point of the bending so that the correct semi-finished product can be obtained after bending. 1. Calculation of 90°bending pipe 90°bending pipe is the most ...Read more -
Daily maintenance is required for thick-walled steel pipes in use
Thick-walled steel pipes are widely used in steel products. It directly affects the economic benefits and the lives of personnel. Countries all over the world have attached great importance to the inspection of thick-walled steel pipes and adopted various non-destructive testing (NDT) methods to ...Read more -
Method of welding steel pipe forming
1.Single radius forming method. The single-radius roll forming method has three types: circumferential bending forming method, edge bending forming method, and center bending forming method. The single radius forming method is: the hole pattern is composed of a single radius, the horizontal rolle...Read more -
Slag inclusion cutting method for straight seam steel pipe
1. Regardless of whether the straight seam steel pipe is rotated or fixed The cutting nozzle should be kept perpendicular to the surface of the straight seam steel pipe. After the cutting is completed, the cutting nozzle is gradually tilted forward at an angle of 70°-80° with the tangent line of ...Read more