1. Stainless heat-resistant steel pipe: Stainless heat-resistant steel pipe refers to a steel pipe that can still maintain the characteristics of stainless steel in a high-temperature environment. It has excellent corrosion resistance and high-temperature strength. According to different operating temperatures, stainless steel heat-resistant steel pipes can be divided into austenitic, ferritic and martensitic types.
2. High-temperature alloy steel pipe: High-temperature alloy refers to alloy materials with excellent mechanical properties and corrosion resistance in high-temperature environments. High-temperature alloy steel pipes are made of high-temperature alloys such as nickel-based alloys and cobalt-based alloys, and are widely used in aviation, aerospace, petrochemical and other fields.
3. Ceramic lined steel pipe: Ceramic lined steel pipe refers to laying a layer of ceramic material inside the steel pipe, which has good wear resistance, corrosion resistance and high temperature resistance. Ceramic-lined steel pipes are suitable for transporting corrosive media and high-temperature gases in special environments.
Manufacturing process of high temperature resistant steel pipes for boilers
1. Smelting: The manufacture of high-temperature resistant steel pipes requires the use of high-quality raw materials and precise smelting processes to ensure the purity of the materials and the stability of the chemical composition.
2. Rolling: After the rolling process, the steel pipe has the required shape and dimensional accuracy while ensuring the density and mechanical properties of the material.
3. Heat treatment: Heat treatment is a key link in improving the mechanical properties and corrosion resistance of steel pipes. Appropriate heat treatment processes need to be selected according to different materials and uses.
4. Surface treatment: The surface treatment of high-temperature resistant steel pipes includes spraying, electroplating and other processes to improve its oxidation resistance and corrosion resistance.
