Aerospace applications require lightweight, high-strength stainless steel pipes for fuel lines, hydraulic systems, and exhaust components.

Ensuring the structural integrity of welded steel pipes is critical, especially for safety-critical applications like pressure vessels, oil rigs, and pipelines.

Hydrogen embrittlement (HE) is a severe issue affecting the integrity of welded pipes, particularly in oil & gas pipelines and hydrogen transport systems.

The microstructural evolution in the weld zone significantly affects the strength and toughness of welded pipes.

Residual stress is an important factor affecting the mechanical properties and service life of welded pipes. It arises due to non-uniform heating and cooling during the welding process.

Anti-corrosion steel pipe refers to a 3-layer structure polyolefin coated anti-corrosion steel pipe, which is a commonly used anti-corrosion pipeline in China. Let's take you to have a deeper understanding of anti-corrosion steel pipes. First, the anti-corrosion structure of anti-corrosion steel pipes and then the advantages of anti-corrosion steel pipes.

How does the thick-walled seamless steel pipe produce residual stress during cold drawing? The uneven deformation of the thick-walled seamless steel pipe under the additional stress cold drawing results in the residual stress after cold drawing.

Galvanized pipe is a galvanized pipe made by bending the strip steel or coil into a spiral shape and welding the inner and outer seams with double-sided submerged arc automatic welding. It is widely used in manufacturing industries such as construction, machinery, coal mining, chemical industry, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, etc. Let's take a look at the advantages and disadvantages of galvanized pipes.

Straight seam steel pipes are a type of welded steel pipe. It refers to a steel pipe whose weld is parallel to the longitudinal direction of the steel pipe. After the hot-rolled steel coil is formed by a forming machine, the steel coil is deformed into a cylindrical shape. The high-frequency current skin effect and proximity effect or arc burning under the flux layer is used for welding, so that the edge of the tube blank is heated and melted under a certain extrusion pressure, melted, and finally cooled and formed. Yes. It is widely used in oil and gas transportation, low-pressure water-gas transportation, mine fluid transportation, belt conveyors, automobile drive shafts and other industries in petroleum, metallurgy, construction, coal mining, ports, machinery and other industries.

What are the specific processes for the heat treatment of seamless steel pipe? What precautions should be taken?

Double-sided submerged arc LSAW steel pipe is widely used in oil and gas pipeline projects, South-to-North Water Diversion Project, subway projects, West-to-East Gas Pipeline and other major projects. But do you know its production process flow?

Zinc is soluble in acids and alkalis, so it is called an amphoteric metal. Zinc is almost unchanged in dry air. In humid air, the zinc surface will generate a dense alkaline zinc carbonate film. In containing sulfur dioxide, hydrogen sulfide and marine atmosphere, zinc corrosion resistance is poor, especially in high temperature and high humidity containing organic acid atmosphere, zinc coating is very easy to be corroded.

Spiral steel pipe manufacturers produced by the spiral steel pipe varieties, in the loading and unloading process it is inevitable that steel pipe damage occurs, the specific matters are as follows:

Hot-dip galvanized steel pipe product standard name for the “low-pressure fluid transport with hot dip galvanized welded steel pipe”, is based on welded steel pipe inside and outside the hot-dip galvanized, so that the inside and outside walls of the steel pipe at the same time coated with zinc, greatly improving the corrosion performance of the steel pipe, up to the ordinary steel pipe about 20 times.

Straightening of LSAW steel pipe is an important process in the production of LSAW steel pipe. Especially for the higher quality requirements of API standard oil casing and oil and gas pipe, machinery and equipment special pipe, these kinds of steel pipe not only in the steel grade and weld quality has strict requirements, the straightness of the steel pipe also has high requirements.