Report of discussions on test melts of N10 steel with addition of titanium and other changes

Technical Report · Mon Mar 22 04:00:00 EDT 1943

OSTI ID:7220168

Class, J

This memorandum detailed several conversations held on the general topic of changes in the composition of N10 steel, since its performance in high-pressure, high-temperature apparatus did not seem to be completely adequate because of its susceptibility to hydrogen attack and subsequent bursting. Among other things was discussed the question of whether it would be helpful to add titanium to the steel, in particular to allow a reduction in the use of the very scarce metals molybdenum and tungsten. After experiments at various steel works, most of the steel companies seemed to be of the opinion that current metallurgical and tempering techniques on an industrial scale were not quite adequate to handle the problems of introducing titanium, such as the tendency of the melt to scorify (turn to slag) and other difficulties in annealing and obtaining desired toughness in the steel. On the other hand, the author and most of the steel companies agreed that it was worthwhile to try changing the composition of N10 without adding titanium. The steel works had had difficulties with the high vanadium content of N10, with the necessary air-tempering, and with high annealing temperatures. The report mentioned several possible compositions for N10-like alloys. One which seemed to the steel companies to be worth experimenting with for hairpin tubes in preheaters was an austenite chromium--manganese steel.

• Research Organization: I.G. Farbenindustrie, A.G., Ludwigshafen (Germany)
• OSTI ID: 7220168
• Report Number(s): TOM-251-444-460
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403 -- Coal & Coal Products-- Hydrogenation-- (-1987)
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ANNEALING
AUSTENITE
CARBON ADDITIONS
CHEMICAL COMPOSITION
CHROMIUM
COAL LIQUEFACTION PLANTS
CONTAINERS
ELEMENTS
HEAT TREATMENTS
HIGH PRESSURE
HIGH TEMPERATURE
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
MANGANESE
MEETINGS
METALS
MOLYBDENUM
PRESSURE VESSELS
REFRACTORY METALS
SEMIMETALS
SILICON
STEELS
TEMPERING
TITANIUM
TRANSITION ELEMENTS
TUNGSTEN
VANADIUM