When most metals come into contact with certain substances in air or water, chemical changes occur that reduce the integrity of the metal. This process is called corrosion. Among them, materials such as oxygen, sulfur, and salt can cause metal corrosion, a ...

316L stainless steel plate belongs to austenitic stainless steel, this kind of steel has excellent plasticity, patience, corrosion resistance. Due to the addition of Mo element (2% ~ 3%), 316L stainless steel plate not only has excellent pitting resistance ...

Desalination plants are known to be very corrosive because of the high temperatures in the environment. Austenitic stainless steels of the previous 300 series are often the preferred materials for desalination plants. In cases where higher corrosion resist ...

In the past few decades, the severity of corrosion in the oil and gas industry has increased year by year. Because the offshore oil industry continues to push oil exploration deeper, it leads to higher pressure conditions and harsher environments. In addit ...

Distractive tests confirm the mechanical requirements of the manufactured pipe. In Distractive Testing- a sample from the actual material is cut to performed various tests. The tensile test is done to check yield and ultimate tensile of the material. If re ...

The integrity of the flange connection is critical to the pipeline system of the conveying fluid. Whether it is a pipeline system that transports chemical media (such as hydrocarbons) or a water supply pipeline, leaking flange connections will cause seriou ...

Most of the time, plastic processing of metal forgings is a series of processes that a simple-shape blank turns into the final product with required shape and size via plastic deformation. Good metal plasticity facilitates plastic forming, and from the ang ...

The instrument which uses the method of ultrasonic testing is called ultrasonic flaw detector. Its principle is: when the ultrasonic wave propagates in the tested material, the acoustic characteristics of the material and the change of the internal structu ...

As supplier of piping goods,we often use post heating of weld and PWHT in production.What is the difference between them? Prefabrication pipeline In post heating, you raised the temperature of the weld joint to a predetermined temperature range (usually 25 ...

P235GH is a European specified steel for use in boilers, pressure vessels and heat exchangers. The composition of EN 10216-2 steel makes it ideal for applications where elevated working temperatures are the normal and the material is used by fabricators th ...

Epoxy coal tar pitch anti-corrosion coating is composed of two main components of epoxy and coal tar pitch. It is a two-component coating of A (epoxy) and B (curing agent). It has excellent adhesion, toughness, moisture resistance, water resistance and che ...

Plastic lined steel pipe, with galvanized seamless steel pipe and welded steel pipe as the base pipe, is lined with food grade polyethylene (PE) pipe with the same diameter as the galvanized pipe after the welding reinforcement is removed from the inner wa ...

The method of removing oxide scale and rust from steel surface by acid solution is called acid pickling. Iron oxides (Fe3O4, Fe2O3, FeO, etc.), such as oxide scales and rust, react with acid solutions to form salts dissolved in acid solutions and are remov ...

When the surrounding medium and atmosphere cause the surface layer of the deformed body to dissolve and form a brittle phase with the metal substrate of the forging, the deformed object will be in a brittle state. For example, titanium can absorb hydrogen ...

The forging product inspection procedure is as follows: ① All forgings should be scrubbed before acceptance of the finished product. ② Before the forging finished product is submitted for inspection, the batch number,material,condition, specification,heat ...

The cold forging of the flange is a small change in the size of the flange during low temperature casting. Casting below 700 ℃, the scale formation is small, and the surface has no decarburization. Therefore, as long as the deformation energy is within the ...

There are various connecting types for the steel pipes,pipe fittings and flanges: socket weld,butt weld,threaded and so on.Socket welding and butt welding are the quite popular of those.However,you might be confused about which one would be best for your p ...

Steel pipe is a kind of hollow long steel, which is widely used as the pipeline for conveying fluid, such as oil, natural gas, water, gas, steam, etc. According to the production process, it can be divided into seamless steel pipe and welded steel pipe. Wh ...

Olets are also called branch connections. Olet fittings are a family of forged products used to make 45 or 90 degrees integrally reinforced branch connections (deviations) from a run pipe (also called, header pipe) to a branch pipe (outlet pipe). The commo ...

After the double-sided submerged arc welded pipe(DSAW pipe) is rusted, the surface of the steel is mainly polished by using a wire brush or the like, and the cleaning and preheating of the spiral pipe can remove the loose or raised scale, rust, welding sla ...