CORROSION OF AISI TYPE 304 STAINLESS STEEL IN HIGH TEMPERATURE BORATED WATER

Technical Report · Mon Dec 01 04:00:00 EST 1958

DOI:https://doi.org/10.2172/4252196· OSTI ID:4252196

Krieg, A.; Cytron, S. J.

BS>The corrosion of type 304 stainless steel in water containing boric acid at 600 deg F and 2000 psig and at a flowvelocity of seven feet per second was investigated as a function of boron concentration and of alkaliknity. At a boron concentration of 39 ppm and at a pH value of 10, controlled with lithium hydroxide, no trend of corrosive attack with time was found after the first tw0 days. At a concentration of 41 ppm boron wlth no pH control (pH = 6.9), a regression tyoe equation of the form Y= A + B log (t), was found to express the relationship between corrosive attack and exposure teme. A similiar relationship was found at 1600 ppm boron withthe pH value maintained at 10 using lithium hydroxide. No evidence of raicrostructural attack was observed on coupon specimens under any of the conditions tested. The effects of surface finish and of position were studied. The effect of orientation of the rolling directon of coupon specimens with respect to the direction of fluid flow was also investigsted. (auth)

• Research Organization: Westinghouse Electric Corp. Atomic Power Dept., Pittsburgh
• NSA Number: NSA-13-007770
• OSTI ID: 4252196
• Report Number(s): YAEC-68
• Country of Publication: United States
• Language: English

Related Subjects

ACIDITY
BORON OXIDES
CONFIGURATION
CORROSION
EQUATIONS
FLUID FLOW
LITHIUM HYDROXIDES
METALLURGY AND CERAMICS
ROLLING
SAMPLING
STAINLESS STEELS
SURFACES
TEMPERATURE
TESTING
VELOCITY
WATER