ASTM A403 WPS31254 Stainless Steel Seamless Fitting Elbow Buttwelded

ASTM A403 WPS31254 Stainless Steel Seamless Fitting Elbow Buttwelded

WPS31254 is an austenitic stainless steel. Due to its high molybdenum content, it has extremely high resistance to spot corrosion and Crevice corrosion. This grade of stainless steel is developed and developed for use in environments containing halides such as seawater. WPS31254 also has good resistance to uniform corrosion. Especially in acids containing halides, this steel is superior to ordinary stainless steel. Its C content is<0.03%, therefore it is called pure austenitic stainless steel (<0.01%, also known as super austenitic stainless steel). Super stainless steel is a special type of stainless steel, which differs from ordinary stainless steel in chemical composition. It refers to a high alloy stainless steel with high nickel, high chromium, and high molybdenum content. Among them, WPS31254 containing 6% Mo has excellent local corrosion resistance. Under conditions such as seawater, inflation, presence of gaps, and low-speed erosion, it has good resistance to pitting corrosion (PI ≥ 40) and good stress corrosion resistance. It is a substitute material for Ni based alloys and titanium alloys. Secondly, in terms of high temperature or corrosion resistance, it has more excellent high temperature or corrosion resistance, which is irreplaceable for 304 stainless steel. In addition, from the classification of stainless steel, the metallographic structure of special stainless steel is a stable austenitic metallographic structure.

Due to the fact that this type of special stainless steel is a high alloy material, its manufacturing process is quite complex. Generally, people can only rely on traditional processes to manufacture this type of special stainless steel, such as pouring, forging, rolling, and so on.

ASTM A403 WPS31254 Stainless Steel Fitting High Temperature Resistance
1. A large number of field experiments and extensive use experience show that WPS31254 has high Crevice corrosion resistance in seawater even at slightly higher temperatures, and only a few types of stainless steel have this performance.

2.The corrosion resistance of WPS31254 in acidic solutions and oxidizing halide solutions required for paper bleaching production can be compared to nickel based alloys and titanium alloys with strong corrosion resistance.

3.Due to its high nitrogen content, WPS31254 has higher mechanical strength than other types of austenitic stainless steel. In addition, WPS31254 also has high ductility, impact strength, and good weldability.

4.The high molybdenum content of WPS31254 can lead to a higher oxidation rate during annealing, resulting in a rougher surface than ordinary stainless steel after pickling. But this has no adverse effect on the corrosion resistance of the steel.

ASTM A403 WPS31254 Stainless Steel Fitting Chemical Components

ASTM A403 WPS31254 Stainless Steel Fitting Main Application

• Marine and Seawater Utilization: High-pressure reverse osmosis pipelines for seawater desalination plants, seawater cooling systems, and ship piping.
• Flue Gas Desulfurization Systems: Absorption towers, flues, and circulating slurry pipelines, resistant to acidic environments containing chloride ions.
• Chemical and Petrochemical Industries: Production lines and equipment for handling strong acidic media containing chlorides and bromides.
• Pulp and Paper Industry: Transport of chloride-containing chemicals in bleaching processes.
• Environmental Protection and Wastewater Treatment: Treatment systems for high-concentration saline and chlorine-containing wastewater.
• High-End Heat Exchangers: Heat exchange tubes and housings for seawater or corrosive media.