And stainless steel are molybdenum containing stainless steels. The molybdenum content of stainless steel is slightly higher than that of stainless steel. Due to the molybdenum content in stainless steel, when the concentration is lower than % and higher than %, stainless steel has a wide range of applications. Stainless steel also has good chloride corrosion resistance, so it is usually used in marine environment.Model & mdash; After that, the second widely used steel is mainly used in food industry and surgical equipment. Molybdenum is added to obtain a special corrosion-resistant structure. Because it has better chloride corrosion resistance than it, it is also made & ldquo; Marine Steel & rdquo; To use. SS is usually used in nuclear fuel recovery units. Grade stainless steel generally meets this application grade.Las-Cumbres,After the pipeline is installed and the pressure test is qualified, it is better to wash with low chloride ion water and disinfect with .% potassium permanganate.Model & mdash& ldquo; Cutting tool level & rdquo; Martensitic steel, an early stainless steel similar to Brinell high chromium steel. It is also used for surgical tools, which can be made very bright. Model & mdash; Ferritic stainless steel for decoration, such as automotive accessories. Good formability, but poor temperature resistance and corrosion resistance.Ban Lam Luk Ka,There shall be a special storage rack. The storage rack shall be a wooden or painted carbon steel support or padded with rubber pad to isolate it from carbon steel and other metal materials. During storage, collision with other components, purification and damage of iron metal.In order to ensure the appearance quality of continuous casting slab, select appropriate maintenance slag; During continuous casting, the vibration marks formed on the surface of continuous casting slab due to the vibration of mold shall be; Electromagnetic stirring must be used in continuous casting of ferritic stainless steel pipe fittings.Stainless steel why corrosion-resistant stainless steel decorative pipe, stainless steel pipe, stainless steel pipe, all metals react with oxygen in the atmosphere to form an oxide film on the surface. Unfortunately the iron oxide formed on ordinary carbon steel continues to oxidize, expanding the corrosion and finally forming holes. The carbon steel surface can be guaranteed by electroplating with paint or oxidation resistant metals (e.g. zinc, nickel and chromium), the steel below begins to rust.

Stainless steel pipes and water transmission equipment for fluid transportation such as water and gas are advanced basic water purification materials in the world. They have strong anti-corrosion performance this protection is only a thin film. If the protective layer is, which can not be compared with cast iron pipes, carbon steel pipes and plastic pipes.When brown rust spots appear on the surface of stainless steel pipes, people will be surprised: & ldquo; Stainless steel pipes are not rusty. Is there a problem with the steel quality;. In fact, this is a one-sided wrong view because the understanding of stainless steel pipe is not comprehensive enough. You should know that stainless steel pipe will rust under certain conditions. Series & mdash; Martensitic precipitation hardening stainless steel.Encyclopedic knowledge,Stainless steel pipe can be divided into equal section pipe and variable section pipe according to the profile shape. Variable section pipes include conical pipes,Las-CumbresStainless steel pipe cutter, stepped pipes and periodic section pipes.High frequency welding high frequency welding: with relatively high power supply, it can reach a higher welding speed for steel pipes with different materials, outer diameter and wall thickness. Compared with argon arc welding, it is more than ten times its high welding speed. Therefore, stainless steel pipes for common use have a higher consumption rate. Due to the high speed of high frequency welding, it is difficult to remove burrs in welded pipes. At present, high frequency welding Welded stainless steel pipe can not be borne by chemical and nuclear industries, and HRC is second only to Brinell hardness Hb in steel pipe standards. Rockwell hardness can be used to measure metal materials from very soft to very hard, which makes up for the disadvantage of Brinell method, It is simpler than Brinell method and can read the hardness value directly from the dial of the hardness machine. However, due to its small indentation, the hardness value is not as accurate as Brinell method.

The shape of pipe end stainless steel pipe can be divided into smooth pipe and threaded pipe (threaded steel pipe) according to the state of pipe end. Threading pipe can also be divided into ordinary threading pipe (pipe for conveying low pressure such as water and gas, which is connected by ordinary cylindrical or conical pipe thread) and special threaded pipe (pipe for petroleum and geological drilling, which is connected by special thread for important threading pipe). For some special pipes, in order to make up for the impact of thread on the strength of pipe end, the pipe end is usually thickened before threading (inner thickening, outer thickening or inner and outer thickening).Administration,The back is not protected by argon, and the flux cored wire + TIG process has been applied in China for several years. Flux cored wires such as et-elt-et-elt-t-et-elt- have been produced and applied to field welding, and good economic benefits have been obtained.Remarks: to ensure the nickel content of stainless steel strip and the mechanical properties of stainless steel strip, material certificate (Baogang material), Japan Nippon Steel Material Certificate (Nippon Steel material), SGS report, etc. can be provided.Vickers hardness stainless steel pipe Vickers hardness test is also an indentation test, which can be used to determine the hardness of very thin metal materials and surface layers. It has the main advantages of Brinell and Rockwell methods and overcomes their basic disadvantages but it is not as simple as Rockwell method. Vickers method is rarely used in steel pipe standards.Las-Cumbres, the burr shall be removed to avoid cutting the sealing ring.Some reasons for product composition ratio: in order to reduce the production costDeburring: after the pipe is cut off, reduce the proportion content of some important elements such as chromium and nickel, and increase the content of other elements such as carbon. This production phenomenon that the composition ratio is not strictly in accordance with the product model and product characteristics not only greatly reduces the product quality, for example, when the chromium content of stainless steel pipe is insufficient, it not only affects the production The corrosion resistance and formability of products have potential product quality and safety hazards when they are used in chemical, equipment and production industries. At the same time, they also affect the appearance and oxidation resistance of products.. Domestic wce cerium tungsten electrode is used for electrode data. The shape and diameter of the end of cerium tungsten electrode have a great impact on the fluctuation of welding process and weld formation.