14.0Cr- 1. 1Ni-9.2Mn-0.30Cu stainless steel was developed on the basis of13.36Cr- 1. 12Ni- 11.2Mn low-nickel austenitic stainless steel

and the metallographic structure

microstructure

mechanical properties and forming properties of austenitic stainless steel with different chemical compositions after solution treatment and cold-rolled annealing are studied

as well as the control laws of austenite stability and cold rolling deformation induced martensitic transformation were analyzed. The results show that the mechanical properties of 14.0Cr- 1. 1Ni-9.2Mn-0.30Cu and that of 13.36Cr- 1. 12Ni- 11.2Mn stainless steel are equivalent

the austenitic structure is fully recrystallized after solution treatment and cold-rolled annealing

the average grain size of cold rolling is 12.6 μm and 14.0 μm respectively

and the microstructure is copper texture{112}<111>the IE (bulge test impression endurance value)and  LDR (Limited Drawing Ratio) of 14.0Cr- 1. 1Ni-9.2Mn-0.30Cu stainless steel are 16.15 and 0.46 respectively

which are better than those of 13.36Cr- 11.2Mn stain- less steel

and the Md30/50 temperature of 14.0Cr- 1. 1Ni-9.2Mn-0.30Cu and 13.36Cr- 1. 12Ni- 11.2Mn stainless steel are 87.02 ℃ and 83.55 ℃ respectively

as Md30/50 high

the austenite stability poor

the deformation introducing martensite volume and cold-rolled deformation resistance increasing

the hardness of annealed steel high. But the hardness after annealing can be improved by reducing the speed of cold-rolled annealing process from 10 m/min to9 m/min.