A process for production of sheet-metal strip of niobium-stabilized 14% chromium
ferritic steel, characterized in that certain steel is subjected to:
- cold rolling of the hot sheet metal with or without preliminary annealing,
- final annealing of the sheet-metal strip at a temperature of between
800 C. and 1100 C. for a duration of between 1 minute and 5 minutes
and preferably at a temperature of about 1050 C. for a time of about 2 minutes.
Steel and exhaust manifold.
