SSAW Pipe

　　The seamless steel pipe manufacturing process starts with a solid, round steel billet. This billet is then heated to great temperatures and stretched and pulled over a form until it takes the shape of a hollow tube. All steel pipe suppliers will tell, there are three great advantages to making a pipe in this way. 　　 Increased Pressure Ratings 　　The greatest advantage of seamless steel pipes is their increased ability to withstand pressure. The weakest point in a welded steel pipe is the welded seam. But because a seamless steel pipe has not been welded, it doesn’t have that seam, making it equally strong around the entire circumference of the pipe. 　　It is also much easier to determine pressure calculations without being required to take weld quality into consideration. 　　Although seamless pipe can sometimes be more expensive than welded pipe, this increased ability to withstand pressure allows you to use pipes that are thinner and lighter, which can help cut down on expense...

　　 SSAW steel pipe in the production process, we need to pay attention to a series of matters. Except the following test items, according to the API standard and other relevant standards and the special requirements of some users, the destructive tests for steel, steel pipe is needed, including physical and chemical properties of the raw materials into the plant sampling, visual inspection of 100% steel . 　　A. Oiled marking: steel after passing were oiled to prevent corrosion, and according to user requirements for marking. 　　B. Leveling Milling: The flat steel anvil machine so that the original curl, and then through the edge milling machine for two-sided steel milling, so as to meet the requirements of the plate width, plate edge parallelism and groove shape. 　　C. Shear molding: the steel plate production line along the outer edge of the spiral curl into a tube. 　　D. Butt cut: double-sided submerged arc welding using advanced technology to pre-welding, internal welding, outs...

　　 Steel Pipe Pricing And Advantages Steel piping is a popular material in so many industries–from oil to automobiles, from shipping to food, from schools to hospitals and refineries. 　　Let’s look at some of the top reasons why engineers, builders, pipe suppliers and oil drillers love steel pipes and why they’re preferred in so many different applications. 　 　Heat Treatable 　　Some steel pipe are heat treatable, meaning that extreme temperatures can be used to modify their chemical and physical properties. 　 　Strength 　　Steel pipes have great tensile and stress-to-rupture strength, and they can maintain this strength even at high temperatures. 　　 Temperature Resistant 　　Steel pipes provide excellent resistance to oxidation at extremely high temperatures. And when chromium is added to the steel, it makes the steel even more temperature resistant. 　　 Welding Capabilities 　　Many grades of steel pipe can be welded into different shapes and sizes–giving them great versatil...

　　The first thing to consider about carbon steel pipe is simply what it is. Carbon steel pipe is pipe comprised of carbon steel. But what is carbon steel? Here’s how the American Iron and Steel Institute defines it: 　　Steel is considered to be carbon steel when no minimum content is specified or required for chromium, cobalt, niobium, molybdenum, nickel, titanium, tungsten, vanadium or zirconium, or any other element to be added to obtain a desired alloying effect; when the specified minimum for copper does not exceed 0.40 percent; or when the maximum content specified for any of the following elements does not exceed the percentages noted: manganese 1.65, silicon 0.60, copper 0.60. 　　Simply, carbon steel is steel in which the main alloying component is carbon. Interestingly, most of the world’s steel falls into this category. 　　What are the different types of carbon steel pipe? 　　Carbon steel is classified according to how much carbon has been mixed with the base element, iro...

　　 Galvanized pipe is pipe that has been coated with a layer of zinc. This coating protects the pipe from corrosion and rust, leading to increased longevity and enhanced reliability. 　　The zinc is often applied via a hot-dipping process, literally lowering the intended material—whether it is steel, aluminum or another metal—into hot zinc. This coating protects the pipe by corroding first when the pipe is out in the field, allowing the metal underneath it to stay intact and usable for a longer period of time. 　　Here are a handful of great reasons why you should choose galvanized pipes: 　 　Inexpensive Protection 　　Galvanization is often less expensive than other ways of protecting metal from corrosion. This is due to the fact that other methods often require intensive labor. Labor costs have risen steadily, which means the costs of these methods have risen as well. 　　 ASTM Galvanized Pipe Standardization 　　The ASTM has standards for many different types of galvanized pipes. ...

　　The transportation industry is very important to us and to the development of the entire country. Because only through transportation, it is possible to send things from all over the world to where they are needed. However, in the past, when transporting some liquids or gaseous substances, there was always a lot of trouble. Because of these substances, there is a very high requirement for the tightness of the pipe. As long as the pipe itself, or where it is connected, any cracks appear. This is all about making transportation and it doesn't make any sense. Because of the transportation, in the process of transportation, all leaked. 　　This problem, after the rise of seamless steel pipes, slowly disappeared. Because the biggest ace product of our factory is seamless steel pipe. Seamless steel pipe is the best material for transporting liquid or gas. Pipes that use seamless steel tubes are not only in terms of tightness, they reach a very high standard. And in the usual maintenanc...

　　① Artificial visual inspection: lighting conditions, standards, experience, logos, pipe rotation. 　　② NDT inspection. 　　a. ultrasonic testing UT 　　More sensitive to a variety of materials uniform surface cracks and internal defects in materials. 　　b. electromagnetic induction eddy current testing ET 　　Mainly point (hole shape) defect sensitive. 　　c. Magnetic MT and magnetic flux leakage inspection 　　Magnetic detection for detecting surface and near surface defects in ferromagnetic material. 　　d. electromagnetic ultrasonic testing 　　Does not require a coupling medium, it can be applied to high temperature and high speed, rough dry pipe surface inspection. 　　e. penetrant inspection 　　A fluorescent, colored, testing of steel surface defects.