L290 seamless steel pipe is a high-strength, low-alloy steel pipe, which is widely used in the transmission pipeline system of oil, natural gas, chemical, electric power and other industries. Its excellent mechanical properties and corrosion resistance make it one of the indispensable materials in these fields.
L290 Seamless Steel Pipe Standard GB T9711 Oil & Gas Industry Steel Pipe for Pipeline Conveying System.
The product shall meet the requirements of TSG D7002 Experimental Rules for the Form of Pressure Piping Components.
Rolling, normalizing rolling, thermomechanical rolling, thermomechanical forming, normalizing forming, normalizing, normalizing plus tempering or quenching plus tempering.
L290 seamless steel pipe mass fraction, based on melting analysis and product analysis, maximum %: carbon c: 028, manganese mn: 130, phosphorus p: 0030, sulfur s: 0030 ,
L290 seamless steel pipe: minimum yield 290MPa, maximum 450MPa, tensile strength: minimum 415MPa, maximum 655MPa, yield ratio maximum 093
First of all, the strength and toughness of L290 seamless steel pipe are excellent. In the manufacturing process, the strength and toughness of the steel pipe can be optimally balanced by controlling the content of alloying elements and the heat treatment process. This enables L290 seamless steel pipe to withstand high pressure and high temperature working environment, ensuring the safe and stable operation of the transmission pipeline.
Secondly, the corrosion resistance of L290 seamless steel pipe is also very good. When transporting oil, natural gas and other media, because the medium contains various chemicals, if the pipeline material is not corrosion-resistant, it is easy to cause damage and leakage of the pipeline. The L290 seamless steel pipe adopts special anti-corrosion measures, such as internal and external coating, alloying, etc., so that it has good corrosion resistance and can effectively resist the erosion of chemical corrosion and electrochemical corrosion, so as to ensure the long-term service life of the pipeline.
In addition to this, L290 seamless steel pipe also has excellent weldability and machinability. During the manufacturing and installation process, steel pipes need to undergo various processing and joining operations, such as cutting, bending, welding, etc. The material and process of L290 seamless steel pipe make it have good processing performance and welding performance, which can meet various complex process requirements and ensure the quality and safety of the pipeline system.
In practical applications, L290 seamless steel pipes are widely used in the transmission pipeline systems of oil, gas, chemical, electric power and other industries. In the field of oil and gas transmission, L290 seamless steel pipe has become one of the preferred materials for oil and gas transmission pipelines due to its high strength, corrosion resistance and long life. In the chemical industry, due to its ability to withstand high temperatures and high pressure working environments, L290 seamless steel pipes are also widely used in the manufacture of various chemical equipment and pipelines. In the field of electric power, L290 seamless steel pipes are used to manufacture transmission pipelines for boilers, generator sets and other equipment to ensure the normal operation of power equipment.
Of course, the application of L290 seamless steel pipe is not limited to the above fields. With the continuous progress of science and technology and the continuous development of industry, the application range of L290 seamless steel pipe is also expanding. For example, in the field of offshore engineering, L290 seamless steel pipe is also used in the manufacture of submarine pipelines and transmission pipes for offshore platforms, ensuring the safety and reliability of offshore engineering with its high strength and corrosion resistance.
In general, L290 seamless steel pipe is a very excellent material for conveying pipes, which has many advantages such as high strength, corrosion resistance, and long life. In various industrial fields, L290 seamless steel pipes play an important role and make great contributions to the development of industry. In the future, with the continuous progress of science and technology and the continuous development of industry, the application prospect of L290 seamless steel pipe will be broader.