The tested austenitic stainless steel 304JI (/%:≤0. 08C

≤1.70Si

≤3.OOMn

15 〜18Cr

6 〜9Ni

1 〜3Cu) is melted by a 10 kg vacuum induction furnace

forged to Φ40 mm bar and solid-solution heat-treated at 1 080 °C for 10 min

water cooling. The effect of 0. 05% 〜2. 52% Cu on mechanical properties of test steel (/%: 0. 054 ~ 0. 068C

0. 45 〜0. 63Si

1. 82 ~ 1. 95Mn

17. 26 〜17. 62Cr

6. 42 〜6. 49Ni) has been tested and studied

and the temperature formed 50% martensite in 30% cold deformation process* cold working induced martensite transformation point M

d30

the stacking fault energy (SFE) and the deep drawing cup value (CUP) of test 304J1 steel and deep drawing steel 304DDQ (/% ：0. 04C

0. 32Si

1.17Mn

18.11Cr

8. 66Ni) are compared and analyzed. It is obtained that as copper content in steel 304JI is 1. 50%

the matching of ambient mechanical properties

cold working plasticity

deep drawing performance and economy is best and the commercial production shows that the deep drawing value of 0. 27 mm sheet of 1. 50% Cu 304JI steel is '13 mm that is about equal to the deep drawing value of 304DDQ steel.