LSAW Steel Pipe For Building Bridge

Large diameter spiral steel pipes are different from LSAW steel pipe and are easy to understand. The lining plastic pipe is a steel-lined plastic composite pipe. It is based on ordinary carbon steel pipe and is lined with chemically superior thermoplastic. It is cold drawn or composited by rotational molding. It has both mechanical properties… Continue Reading LSAW Steel Pipe For Building Bridge

Advantages Of Using LSAW Steel Pipe To Transport Fluid

1. The capital construction cost is low. Compared with railway transportation, the capital construction cost can be saved by one third, and the transportation volume is twice that of the railway. 2. Simple construction, fast construction, generally laid underground, safe and reliable, and adapt to various terrains. 3. The transportation and operation cost is low,… Continue Reading Advantages Of Using LSAW Steel Pipe To Transport Fluid

How To Ensure The Straightening Accuracy Of LSAW Steel Pipe

Advantages of headless welding of lsaw steel pipe headless welding and rolling has the characteristics of increasing production, improving finished product rate and rolling mill operation rate, reducing cost, facilitating production management and adaptability. Under normal circumstances, the straightening of the straight seam welded pipe is mostly straightened one time to achieve the required straightening… Continue Reading How To Ensure The Straightening Accuracy Of LSAW Steel Pipe

Introduction To The Dimensions Of LSAW Steel Pipes

LSAW steel pipe: introduction of steel pipe dimensions Nominal size and actual size 1. Nominal size: It is the size specified in the standard, which is the ideal size that users and manufacturers hope to obtain, and is also the order size indicated in the contract between the two parties. 2. Actual size: is the… Continue Reading Introduction To The Dimensions Of LSAW Steel Pipes

Double-sided Submerged Arc Welding Straight Seam Steel Pipe Technology

LSAW-Longitudinal Submerged Arc Welded is a new welding method invented in 1940. It is the same as the previous manual welding. It is still protected by slag, but this slag is not the coating of the electrode.  The double-sided LSAW steel pipe and the manual welding are the same in that it is still protected… Continue Reading Double-sided Submerged Arc Welding Straight Seam Steel Pipe Technology

Development Of SSAW Steel Pipe And Main Production Methods

The production process of ssaw steel pipe is more complicated than that of lsaw steel pipe. The proportion in steel pipe is stable at 42%~45% in recent years, and the welded pipe has a rising trend. Compared with welded steel pipes, spiral steel pipes are highly reliable in material reliability and variety, especially for the… Continue Reading Development Of SSAW Steel Pipe And Main Production Methods

What Are The Hazards Of The Weld Seam Of The Welded Pipe?

With the rapid development of high-quality strip continuous rolling production and advances in welding and inspection technology, the quality of welded joints has been continuously improved, and the number of welded pipes has also increased, and seamless steel pipes have been replaced in more and more fields. In the production process of welded pipes, the… Continue Reading What Are The Hazards Of The Weld Seam Of The Welded Pipe?

Two-sided SSAW Steel Pipe Technology

The Q235b SSAW steel pipe for water supply uses the welding technology of double-sided submerged arc welding widely, which is similar to the LSAW steel pipe. The formation process and characteristics of the submerged arc automatic welding are briefly discussed below. The principle of submerged arc welding: submerged arc welding is the use of arc… Continue Reading Two-sided SSAW Steel Pipe Technology

The Quality Control Of The Spiral Pipe For The Water Pipeline

Spiral steel pipes for water transmission pipelines are made by winding low-carbon carbon steel or low-alloy structural steel steel strips into tube blanks at a certain helix angle, and then welding the tube seams. It can use narrower strips of steel. Consumption of large diameter steel pipes. The Spiral Welded Tubes are circularly deformed and… Continue Reading The Quality Control Of The Spiral Pipe For The Water Pipeline

Steel-clad Steel Steam Insulation Pipe To Achieve Integration Of Production Capacity

Steel-clad steel composite heat-insulating steel pipe is one of underground direct-buried pipes. Unlike the ssaw steel pipe, it adopts the method of direct underground burial without concrete structure. That is, the thermal expansion of the working steel pipe is performed in the outer pipe. This reduces the material cost, shortens the construction date, and guarantees… Continue Reading Steel-clad Steel Steam Insulation Pipe To Achieve Integration Of Production Capacity