Abstract
1. Kh14G14N3T steel has an austenitic structure with a small amount of the α-phase; the amount of this phase is determined by the ratio between the ferrite and austenite-forming elements. 2. At room temperature Kh14G14N3T steel has a higher strength than Kh18N9T steel. 3. Kh14G14N3T steel can easily be welded by different methods and is recommended as a substitute for Kh18N9T steel in manufacturing welded apparatus subject to high pressures at temperatures as low as −196°C. 4. Preliminary cold working (up to 20%) increases the strength of the steel without impairing its ductility at low temperatures in any significant way. 5. The use of Kh14G14N3T steel in place of Kh18N9T steel makes it possible to decrease the use of nickel considerably and decrease the cost of the equipment.
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