Steel 1Cr25Ni20Si2 is a kind of austenitic stainless steel, which belongs to the 17Cr-25Ni system stainless steel. Its main component is Cr 26, Ni 19 and Si 2. Steel 1Cr25Ni20Si2 has strong intergranular corrosion resistance due to its high Cr content. Besides, it has excellent stress corrosion cracking and corrosion resistance in chloride media.
1Cr25Ni20Si2 steel has excellent weldability and is widely used in the manufacture of chemical and petrochemical equipment, papermaking and dyeing machinery, food and energy power machinery, industrial furnace equipment, and stainless steel components such as pipelines, rods and plates. Its applications include petroleum, chemical and other industries, storage tanks and evaporators, filters and pipes and reaction vessels. In addition, it is also used in metallurgy, electronics, electric heating, medical equipment and other industries.
1Cr25Ni20Si2 steel has excellent properties such as good mechanical properties, oxidation and corrosion resistance under high temperature, and can easily strengthen in all directions. In addition, it has excellent thermal stability and low-temperature embrittlement resistance, and its corrosion resistance can reach more than 700°C.
1Cr25Ni20Si2 steel also has excellent cold processability, especially during welding. When welding 1Cr25Ni20Si2 steel and other metals, optimal welding parameters such as current, voltage, speed, feed and pre-melting of the welding joints should be selected according to the different grades of 1Cr25Ni20Si2 steel, and the spacing of welding grooves and welding gap should also be determined. During welding, appropriate preheating temperature should be adopted to control the cooling rate of welding joints. In addition, in order to prolong the life of stainless steel equipment, appropriate protective measures must be taken during installation, such as adopting the principle of preventing stress concentration and beautifying the appearance of equipment.
In summary, this kind of 1Cr25Ni20Si2 steel has good mechanical properties and excellent corrosion resistance, arc welding and cold processing performance, and can be widely used in the manufacture of chemical and petrochemical equipment, papermaking and dyeing machinery, food and energy power machinery and other industrial equipment, and can also be used in metallurgy, electronics, electric heating and medical equipment industries.
