2205 butterfly valve

characteristics in high-temperature corrosive media can be derived based on the general characteristics of 2205 material and the structural design principles of butterfly valves. The following comprehensive analysis is conducted on the performance of duplex steel and the key technical points of butterfly valves:
1、 Material characteristics and structural adaptability
Corrosion resistance and high-strength design
Advantages of biphasic organization: The ferrite austenite biphasic structure with 22% chromium, 5.3% nickel, 3.2% molybdenum, and 0.16% nitrogen endows it with excellent resistance to chloride ion corrosion (Cl ⁻ ≤ 10000ppm), suitable for corrosive media such as seawater and sulfur-containing flue gas.
Mechanical properties: Yield strength ≥ 450MPa (twice that of 304 stainless steel), hardness ≥ 290HB, and resistance to erosion and wear by media containing particles.
Optimization direction of butterfly valve structure

选型建议