The effect of sulphur content on pitting corrosion resistance of 03Kh24N6AM3 steel
- Bardin Central Research Institute of Ferrous Metallurgy, Moscow (Russian Federation)
In mechanical engineering processes corrosion-resistant steels, including austenitic-ferritic steels, possess worse machinability than that of carbon and structural steels. A commonly used way to increase the machinability of austenitic steels is special-purpose alloying with sulphur. However this method decreases their pitting corrosion resistance and high-temperature ductility in metallurgical processes. The effect of sulphur depends on chromium content in the steel. Addition of minimum 0.15% sulphur at chromium content maximum 18% was shown to increase the machinability of ferritic and austenitic steels. But the addition decreased the steels corrosion resistance, high-temperature ductility and weldability. An austenitic-ferritic steel of the Kh15N6N3 type having a definite correlation of the components and containing up to 0.1% of sulphur was pointed out to hold a satisfactory corrosion resistance in mediums containing hydrogen sulfide and chloride ions.
- OSTI ID:
- 91219
- Journal Information:
- Protection of Metals, Journal Name: Protection of Metals Journal Issue: 4 Vol. 30; ISSN 0033-1732; ISSN PTNMAR
- Country of Publication:
- United States
- Language:
- English
Similar Records
Resistance of steels to pitting and crevice corrosion in chloride solutions
RESISTANCE OF VARIOUS STEELS TO CORROSION-PITTING