【Daily Question】Multiple-choice question 11.7 Valves dedicated to austenitic stainless steel equipment or pipelines that do not require maintenance
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Sealing off austenitic stainless steel equipment or pipeline valves and blind flanges that do not require maintenance by filling them with slightly positive pressure nitrogen serves to prevent (). An effective method. A. Pyrosulfuric acid corrosion B. Hydrogen corrosion C. Tempering embrittlement D. Alkali embrittlement A
Select A: Persulfate corrosion
A、Polythionic acid corrosion----------------------------------------------------
Sealing off austenitic stainless steel equipment or pipeline valves or blind flanges that do not require maintenance, and filling them with slightly positive pressure nitrogen for protection, is an effective method to prevent (A).
Sealing off austenitic stainless steel equipment or pipeline-specific valves or blind flanges that do not require maintenance, and filling them with slightly positive pressure nitrogen for protection, is an effective method to prevent (A) polyoxysulfate corrosion.
A. Polyoxysulfuric acid corrosion================
Sealing off austenitic stainless steel equipment or pipeline valves or blind flanges that do not require maintenance, and filling them with slightly positive pressure nitrogen for protection, is a method to prevent (A). An effective method. A. Pyrosulfuric acid corrosion B. Hydrogen corrosion C. Tempering embrittlement D. Alkali embrittlement
A. Pyrosulfuric acid corrosion. . . . . . . . . . . .
Sealing off austenitic stainless steel equipment or pipeline valves or blind flanges that do not require maintenance by filling them with slightly pressurized nitrogen serves to prevent (A) peroxysulfate corrosion. An effective method.
Sealing off austenitic stainless steel equipment or pipeline valves or blind flanges that do not require maintenance, and filling them with slightly positive pressure nitrogen for protection, is a method to prevent (A). An effective method.