Stress Corrosion Cracking of Austenitic and Duplex Stainless Steels in the Kraft Pulp Mill, 1999 Engineering Conference Proceedings
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Craig Reid, P.Eng.
Bacon Donaldson Consulting Engineers
This paper is intended to provide background information for the maintenance engineer who must deal with stress corrosion cracking (SCC) when it is discovered in service. Case histories are presented to demonstrate that SCC of austenitic and duplex stainless steels has occurred in the kraft process especially where aggressive environments have developed in vapor spaces and beneath deposits. Most of the case histories are from coastal mills with high sodium chloride concentrations in the liquor system and associated process streams. They suggest there may be a sodium chloride threshold above which SCC should become a consideration in materials selection at the project stage and for inspection and maintenance.
Stress Corrosion Cracking of Austenitic and Duplex Stainless Steels in the Kraft Pulp Mill, 1999 Eng