The effect of sulphur content on pitting corrosion resistance of 03Kh24N6AM3 steel

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Protection of Metals

OSTI ID:91219

Fel`dgandler, E G; Kazakova, G V ^[1]

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1. 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

Related Subjects

36 MATERIALS SCIENCE
AUSTENITIC STEELS
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
DUCTILITY
FERRITIC STEELS
MACHINING
METALLURGICAL EFFECTS
PITTING CORROSION
SULFUR
WELDABILITY