Duplex Steel Gate Valve, 5A, 2507，Flexible wedge, High Pressure, 1500lb, Supplier, Manufacturer

The higher chromium and molybdenum content of 5A duplex stainless steel gate valves make it more resistant to overall corrosion of organic acids such as formic acid and acetic acid. The duplex steel globe valve is resistant to inorganic acids, especially Those mineral acids that contain chlorides are also highly resistant to corrosion. Duplex steel gate valves can be used in dilute hydrochloric acid environment, and has strong anti-spot damage and anti-crevice corrosion ability.

Its main feature is that the yield strength can reach 400-550MPa, which is twice that of ordinary stainless steel, so it can save materials and reduce equipment manufacturing costs. In terms of anti-corrosion, especially under the conditions of harsh medium environment (such as seawater, high chloride ion content), the anti-pitting corrosion, crevice corrosion, stress corrosion and corrosion fatigue properties of duplex stainless steel are obviously better than ordinary austenite Stainless steel, comparable to high alloyed austenitic stainless steels. Duplex stainless steel has good welding performance. 

Compared with ferritic stainless steel and austenitic stainless steel, it is neither like the welding heat affected zone of ferritic stainless steel. Unlike austenitic stainless steel, it is more sensitive to welding hot cracks. Due to its special advantages, duplex stainless steel is widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil and gas pipelines, papermaking machinery and other industrial fields. In recent years, it has also been studied in the field of bridge load-bearing structures. Prospects.