L6000mm ASTM A53 Grade B ERW Pipe

CARBON STEEL SEAMLESS PX DO 273.1*THK 9.27*L6000MM API 5L GR.B WELDEO 801687

Introduction
After extrusion, take off the pipe and set the diameter. The diameter fixing machine rotates into the steel embryo through the conical bit at high speed to form the steel pipe. The inner diameter of the steel pipe is determined by the outer diameter length of the drill bit. After the steel pipe is fixed, it enters the cooling tower and is cooled by water spray. After cooling, the steel pipe will be straightened. The steel pipe is straightened and sent from conveyor belt to metal flaw detector (or hydraulic test) for internal flaw detection. If there are cracks, bubbles and other problems inside the steel pipe, it will be detected.
Steel pipe or all kinds of conventional weapons indispensable materials, barrel, barrel and so on are made of steel pipe. The steel pipe can be divided into round pipe and special-shaped pipe according to the shape of cross-sectional area. Because the circular area is the largest under the condition of equal circumference, more fluid can be transported by circular pipe. In addition, the ring section under internal or external radial pressure, the force is more uniform, therefore, most of the steel pipe is a circular pipe.
Making ring parts with steel pipe can improve the utilization ratio of materials, simplify the manufacturing process, save materials and processing hours, such as rolling bearing ring, Jack sleeve, etc. At present, steel pipe has been widely used to manufacture.
It is divided into 10# seamless steel pipe ,20# seamless steel pipe ,4# seamless steel pipe and so on.

Material factors

(1) Seamless steel pipes with good comprehensive performance should be used for structures directly bearing dynamic loads and those in strong seismic zones under load conditions, while seamless steel pipes with lower prices can be used for structures generally bearing static loads.
(2) The welding process of the connection method results in welding deformation, welding stress and other welding defects, and there is a risk of cracks or brittle fracture of the structure. Therefore, the welding structure should be strict with the material requirements.
(3) In the temperature and environment of the structure, seamless steel pipe is easy to be cold and brittle at low temperature, so the structure working at low temperature, especially the welding structure, should choose the sedative steel with good resistance to low temperature brittle fracture. In addition, Taiyuan seamless steel pipe with open-air structure is easy to produce aging, and seamless steel pipe with harmful medium is easy to corrode, fatigue and fracture, so different materials should be selected differently.