There are many kinds of base materials for anti-corrosion steel pipes, such as spiral steel pipes (ssaw), straight seam steel pipes, seamless steel pipes, etc. Therefore, the quality of anti-corrosion steel pipes must be judged from the base material and anti-corrosion quality. 1. Anticorrosion (1) The appearance is delicate and the workmanship is good, without burrs. (2) The internal…
Read MoreFor the manufacture of seamless steel tubes, the corresponding annealing treatment must be carried out after each cold drawing. Purpose of annealing: 1. Reduce hardness and improve machinability. 2. Eliminate residual stress, stabilize size, reduce deformation and crack tendency. 3. Refine the grains, improve the structure, and eliminate the defects of the structure. 4. Homogenize material organization and composition,…
Read MoreProject location：Australia Product：ERW steel pipe and Seamless steel pipe Standard and material：API 5L GR.B Specifications：6”, 10”, 12” Usage：Drinking water pipeline construction project Inquiry time：2021-10-15 Order time：2021-11-03 Shipping time：2021-12-31 Arrival time：2022-02-06 I met this customer in October 2018. Customer regularly ordered steel pipes for inventory. This order is slightly different from the past. Our customer purchases FBE coated steel pipes…
Read MoreThe application field of seamless steel pipe has been expanded little by little, and its various characteristics have been brought into full play in various fields. Now it has also been applied in the field of solar power generation and manufacturing. However, because of the different assets and technical capabilities of manufacturers, the requirements for seamless steel pipes are…
Read MoreSeamless steel pipe (SMLS) is an important type of steel. For seamless steel pipes, seamless steel pipes should also be numbered in the process of production and use. Only when the numbering is properly marked will the performance of the seamless steel pipe be better brought into play. There are also many problems to be paid attention to in…
Read MoreThe surface quenching and tempering heat treatment of seamless steel pipes is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness and effective hardened layer depth. Vickers hardness tester can be used for hardness testing, Rockwell hardness tester or surface Rockwell hardness tester can also be used. The selection of…
Read MoreThe reasons for the deformation of carbon seamless steel pipes are often complicated, but as long as we master the laws of deformation, analyze the causes, and use different methods to prevent the deformation of the mold, it can be reduced and controlled. In general, the heat treatment deformation of seamless steel pipes can be prevented by the following…
Read MoreSeamless steel pipe (smls pipe) is a non-combustible building material, which has the characteristics of earthquake resistance and bending resistance. In practical applications, seamless steel pipes can not only relatively increase the load capacity of buildings, but also meet the needs of architectural design aesthetic modeling, and also avoid the defects that concrete and other building materials cannot be…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
