Steel pipe, like welded steel pipe, is of great importance in transporting water, gas, oil and so forth. There are various kinds of pipes both at home and abroad. To find the right diameter of the pipe is important since wrong diameter of steel pipe will make it difficult to accomplish your task, so you need to find a proper one from the plumbing store actually.

  We know that welded API steel pipe has its own application scope and physical feature. API stands for American Petroleum Institute. It is one of the most popular materials. Others such as ASTM, ASME and so on are also available. Compared, the API material is more welcomed by us, for it is very suitable for our normal life. Diverse types and patterns products are found in the market that you can choose the most suitable one for your project.

In some aspects, the pvc pipes have the advantages that the steel pipes could not be comparable to. However, the excellent resistance to pressure makes the black steel pipe the best option for a lot of industries. These pipes play an important role in modern piping system. With the use of black steel pipe, the security of the gas line is insured.

Due to its reputable fame, steel is used in automobile, construction and food industry. Stainless steel pipe is popular for its resistance to rust. When it comes to black steel pipe, it is well know for cheaper price. The thickness of the black steel pipe varies as the changing of the dimensions. It is not difficult to cut thin pipes, but if you plan to cut the pipes in domestic way, you will have to prepare custom tools. Generally speaking, it is not easy for homeowners to accomplish the cutting task by themselves.

  API was is the first worldwide standard. The main functions of the association include advocacy and negotiation with the government, the legal profession and regulatory agencies; study the economic impact of the industry on the environment and to establish industry standards and certification, and for outreach, education and publicity. API funded and conducted a number of studies and oil-related industries.

  The manufacturing process of API steel pipes begins with solid steel rounds or billets. They are cut into specified length according to the requirements of buyers and sent through a furnace whose temperature can reach as high as 2,300℃. Then the melting rounds are turned into a tube shell in less than ten seconds as while preheated billets are rolled cross-rolled at a high speed. Tests of the size and wall thickness are carried out by a cutting-edge hot-wall measuring system.

  Sometimes we are blind to the welded steel pipe in our daily life and some of us even have not realized the existence of steel pipe. The welded steel pipe is very strong and when you need to bend it into a certain shape for your project, the task is not as difficult as it seems to be. With the help of proper bender, you can easily accomplish your purpose. The main efforts you need to focus on is to pick out the proper pipe bender and to learn how to bend welded steel pipe.

  Inexpensive and versatile, black steel pipe properties are widely used in the construction industry around the world. At the same time, both the production and sales of black steel pipes have witnessed dramatic increase in the past few years. The grades of black steel pipe properties vary in chemical composition and precise control of compositions allows for the manufactures to make products with a number of properties and attributes. In addition, the temperature during the manufacturing process largely determines the chemical composition of black steel pipe.

Installing API steel pipe handrails in subway, walkways as well as places assemble many people where handrails are extremely needed to protect people from dangers like falling or sliding from the stairs when people are crowded is a significant thing that cannot be ignored.

  During the production of the API steel pipe, a main kind of the welded steel pipes, it has obvious brittleness of high temperature tempering, causing lower and unstable impact strength. There are two methods to address this problem. One is to use fast cooling after tempering to avoid high temperature brittleness and gain toughness. The other way is to uses subcritical quenching, through the incomplete austenitizing of the steel to improve harmful elements and impurity so as to promote toughness. The first method has strict requirements to the equipments for heating processing, needing to add extra cost.

Galvanized black steel pipe is a steel pipe that has been coated with zinc. Here are the advantages of galvanized black steel pipe.

Galvanized steel contains cold galvanized black steel pipe and hot galvanized black steel pipe. Hot galvanized steel pipe is most commonly seen in machinery, coal, railway vehicles, bridges, container, agricultural machinery, petroleum machinery, mining machinery and equipment and other manufacturing industries. Hot galvanized black steel pipe is covered with hot-dip players or electro-galvanized layer. Zinc galvanized plating layer increases the corrosion resistance of the steel pipe, extend the service life. Galvanized black steel pipe is widely used, except for water, gas, oil, and other generally low-pressure fluid black steel pipelines, it is also used as the oil well black steel pipes in the oil field of and oil black steel pipelines particularly, it is also used in oil chemical Coker heaters, condensate cooler, coal distillation of wash oil exchange used black steel pipes, and trestle piles, mine tunnel support frame tube, etc..

API steel pipe is widely used in lots of industries. However, a lot of customers still don't know how many kinds of API steel pipe are there on the market. Don't worry about that. Here are the details.

API line steel pipe
API line steel pipe is the line pipe that meets the American Petroleum standard. Line pipe is used for transportation of oil, gas and water to the oil and gas industry enterprises. Ends of pipe include plain end, threaded end and socket end; their connections concludes end welding, coupling, socket connections. With the development of technology, API line steel pipe's range of applications is expanding gradually, especially in the large-diameter disaster. Coupled with the factor of cost, welded pipe have a dominant position in the field of line pipe, limiting development of stainless steel seamless line pipe. During 2004, production of seamless line pipe is about 400,000 t, ranging from X42 to X70. API line steel pipe is divided into onshore line steel pipe and subsea line steel pipe. The production of high grade line steel pipe is currently adopting micro-alloying heat treatment technology. The cost of stainless steel seamless pipe is significantly higher than welded pipe. On the other hand, with the increase of steel grade, conventional technology of seamless steel pipe is difficult for producer to meet users' requirements. At present API line steel pipe production plant are carrying out research work in order to improve its pipeline corrosion resistance and stable performance in the environment of low or high temperature.