How to test the quality of hot rolled seamless steel pipe? 1. High quality inspection of permeable layer and core. Check whether the strength of the surface and the core meets the technical standards, whether the gradient direction of the intensity conversion from the surface to the interior is effective, and whether the surface strength is consistent; 2. Check…
Read MoreUnder the background of advocating low-carbon, energy conservation and environmental protection, all kinds of transportation machinery are also developing in the direction of lightweight. In this paper, the mature TRIP steel production technology is applied to the production of steel pipe, and the thin-walled TRIP steel seamless pipe with ferrite, bainite, residual austenite and a small amount of martensite…
Read MoreThe mechanical properties of steel are important indicators to ensure the final performance of seamless pipe, which depends on the chemical composition and heat treatment system of the steel. In the seamless pipe standard, according to different use requirements, the tensile properties, hardness and toughness indicators, as well as the high and low temperature properties required by users, are…
Read MoreAlloy seamless pipe is a pearlite heat-resistant alloy structural steel, which has good high-temperature mechanical properties, high plasticity during cold deformation, no tempering brittleness tendency, good machinability and acceptable weldability. It is generally used under high-temperature normalizing and high-temperature tempering; It is mainly used for superheater tubes with working temperature of 570 ~ 585 ℃ in pressure boiler, pipeline…
Read MoreIndex analysis of mechanical properties of seamless pipes (smls pipe): 1. The performance index analysis of seamless pipe–plasticity. Plasticity refers to the ability of metal materials to produce plastic deformation without being damaged under load. 2. Analysis of performance index of seamless pipe–hardness. Hardness is a measure of the hardness of metal materials. At present, the commonly used method…
Read MoreThe carbon element in the seamless steel tube (smls) has a great influence on its own performance, so when the seamless tube is decarburized, its service life will be greatly reduced, and if the surface of the seamless tube is decarburized If it is not cleaned, the hardness and wear resistance of the surface layer of the seamless pipe…
Read MoreIn order to improve the performance of stainless steel pipe (ss pipe), it is often necessary to adopt certain cold working methods, such as cold drawing, cold rolling, cold rolling, cold bending, cold expansion, cold twisting, etc., which can achieve a certain effect and cause certain damage. Cold working is actually like welding, which will inevitably damage the performance…
Read More1. The application field of pipe is very wide. Pipes are used in many industries. 2. Different industries have different characteristics of different industries, and thus have different technical requirements. 3. Pipe is a relatively mature product, and various industries have corresponding technical standards. 4. Test the pipe, select the corresponding product standard according to the industry in which…
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.
