Views: 0 Author: J-VALVES Publish Time: 2024-03-04 Origin: Site
In the industrial field, the material selection of high-performance ball valves is extremely important, especially its corrosion resistance, high temperature resistance and wear resistance. The following is a material selection analysis for these three properties:
Stainless steel (such as 316L) is a common choice and is suitable for a variety of corrosive media, but its effect is limited in strong corrosive environments such as chlorides. Alloy steel (such as chromium-molybdenum alloy steel) has stronger corrosion resistance and is suitable for high temperature and high pressure environments. Titanium alloy performs well in seawater and strong acid environments. For strongly corrosive media, plastic-lined materials (such as PTFE) or ceramics are better choices.
II. High temperature resistance
Stainless steel performs well under working conditions of 200°C to 400°C, but it needs special treatment. Alloy steel (such as Inconel) is suitable for higher temperatures and strong corrosive media. Ceramic materials (such as silicon nitride) can operate stably in extremely high temperature environments.
Stainless steel can improve wear resistance through hardened surfacing process and is suitable for particle-containing media. Alloy steel has high hardness and is suitable for high-pressure and high-vibration environments. Ceramic materials perform extremely well due to their high hardness and low friction coefficient, especially suitable for extremely worn environments.
