SSAW Pipe

　　Thick-walled uneven of seamless steel pipe 　　1, During the perforation of seamless steel tubes extending coefficient is too large, roll speed is too high, rolling stable. 　　2, Throwing punch steel capillary instability could easily lead to the tail of uneven thickness. 　　3, Seamless steel tube tip cut slope, bend through the large, tube-centering holes errors could easily lead to uneven thickness of the head pipe. 　　Thick-walled seamless steel pipe uneven Cause Action 　　1, Note the use of state guide disc and increase the guide disc bolt inspection efforts to reduce lead plate when rolling seamless steel pipe ran amplitude ensure stable cast steel. 　　2, Check the quality of seamless steel tube to prevent the tube tip cut slope, large reduction, replacement or repair should be corrected pass the centering holes.

　　There are lots of classifications when talked about ASTM steel pipe. And even for ASTM steel pipe, there are ranges for types of grades, for example, seamless steel pipe or ERW steel pipe for ASTM A 53? Today, we can have a detailed information for them. 　　ASTM A53 LSAW steel pipe can be made with two categories: ERW steel pipe and seamless steel pipe with types of F, E, S covering grades of A and B. 　　 Details are here: 　　ASTM A53 type F, it would be welded on furnace butt with continuous weld Grade A. 　　ASTM A53 type E, it’s a kind of ERW steel pipe in Grade A and Grade B. 　　ASTM A53 type S, this would be made seamless steel pipe in Grade A and Grade B. 　　It would be identified with the raw steel material with different production process for the different grades. Manufacturers of steel pipes would know this clearly. 　　 http://www.xysteelpipe.com/info/ASTM-A53-LSAW-steel-pipe-type-and-grade-1109-1.htm

　　Seamless stainless steel pipes treatment technology refers to the processing of achieving uniform silver with metallic luster. This is generally referred to the production of large seamless stainless steel pipes. Because large seamless stainless steel pipes is manufactured through stamping, folding and welding process, the surface of workpiece has oil, rust, macular, which is neither beautiful, and easy to rust, reducing its stainless steel quality and value. 　　To make seamless stainless steel pipes achieve the standard, the surface must be finished. After forming matte treatment, that can achieve beautiful appearance, but also improve its anti-corrosion and anti-discoloration performance. After the above method, the corrosion resistance of stainless steel seamless pipes can be increased by 2 to 3 times. 　　Seamless stainless steel pipes does not rust due to the existence of chromium, nickel components, and then through the matt treatment, not only can eliminate the matrix im...

　　During the construction of natural gas and oil pipeline stations, the installation of valves, meters and flanges should be tapped in the main channel. It is difficult to identify the straight seam position of the base pipe by high-frequency resistance welding. The installation of some lugs is very close to the welding seam. Therefore, it is very necessary to deeply study and analyze the influence of the boss on the basic pipeline. In this paper, the residual stress distribution of high frequency longitudinal resistance welded pipe is analyzed, and the influence of welding position of different boss on residual stress is analyzed. The stress increases sharply and the longitudinal welding residual stress is affected when the boss installed on the ERW pipe is much larger than the parent pipe. 　　ERW pipeline 　　The distribution of residual stress in welded pipe is closely related to the forming process. HFW resistance welding is the cross section of a circular tube after rolling, whic...

　　In the process of loading and unloading, spiral steel pipe damage is inevitable, and some measures and methods need to be taken to ensure this situation. The details are as follows: 　　1. Spiral steel tube packing should be able to avoid loose and damaged during normal handling, transportation and storage. 　　2. If the demand side has special requirements for the packing materials and packaging methods of spiral steel pipes, it shall be specified in the contract; if not specified, the packaging materials and packaging methods are provided by the supplier. 　　3, Packaging materials should comply with the relevant provisions. If no packaging material is required, it should meet the intended use, avoid waste and cause environmental pollution. 　　4. If the customer requests that the spiral steel pipe cannot be damaged by bumps on the exterior, consider using a protective device between the spiral steel pipes. Protective equipment can use rubber, straw rope, fiber cloth, plastic, caps...

　　Alloy steels are what they sound like: Steels that include specified amounts of alloying elements. Generally, alloying elements make steels stronger and more resistant to impact or stress. While the most common alloying elements include nickel, chromium, molybdenum, manganese, silicon and copper, many others are used in the production of steel. 　　There are countless combinations of alloys and concentrations in use in industry, with each combination designed to achieve specific qualities. 　　High-alloy types of steel are favored in the piping industry for service in extreme conditions, whether it be in hot or cold conditions or subject to rough use. That’s because the combination of chemistry and proper heat treating can yield strong yet ductile pipe that can take a beating. The oil & gas and power generation industries often favor alloy pipe due to its toughness. 　　Alloying elements also impart increased corrosion resistance to steel pipe. That makes it a leading choice for ...

　　Carbon steel pipe is most commonly used in critical engineering applications. It may also be used in automotive applications or structural applications as well. Carbon steel piping is important in applications from oil and gas to control lines or electrical lines. Depending on the job at hand determine whether you are in need of seamless carbon steel pipe or welded carbon steel pipe. 　　Welded carbon steel piping is formed from an originally flat piece of carbon steel. The piece of carbon steel is rolled and welded creating a welded seam going long ways down your piece of carbon steel tubing or piping. The weld is formed by using a high energy source to melt the local metal together. Thus creating a weld bead when squeezed together. You will notices where the welded seam is the weld bead. This will be raised compared to the rest of the carbon steel pipe. You will find that some seams are manipulated to become more flush with the piping, while others are sold “as-weld” meaning they a...