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U.S. Department of Energy
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SOME METALLURGICAL FACTORS AFFECTING STRESS CORROSION CRACKING OF AUSTENITIC STAINLESS STEELS

Technical Report ·
OSTI ID:4257732
Tests of 18-8 stainless steels in boiling 42% MgCl/sub 2/ show that alloys with 0.015% C or 0.01% N or less joint fail at 200 to 260 hours. Commercial 304 alloys fail in 0.2 to 1.4 hr. Stable austenitic steels (20% Cr, 20% Ni) are similarly resistant if N/sub 2/ content is below 0.002%. Carbon confers resistance to cracking in 304 stainless steels. The action of Ti, Nb, Si, Co, and B is also discussed. A mcchanism is offered. (T.R.H.)
Research Organization:
Massachusetts Inst. of Tech., Cambridge. Corrosion Lab.
NSA Number:
NSA-13-014524
OSTI ID:
4257732
Report Number(s):
NP-7602
Country of Publication:
Country unknown/Code not available
Language:
English