The 06Cr19Ni10 stainless steel with different nitrogen and nickel content was smelted using vacuum induction furnace（ZG-0.01）to understand effects of increasing nitrogen and reducing nickel on microstructure and mechanical properties.The results show that microstructure of the test steel with nitrogen content of 0～0.28% and nickel content of 5.98%～9.63% keeps still the single austenitic

and the grain size is decreased with the nitrogen content increase

while the impact toughness of the test steel is deteriorated

where the room temperature impact absorption energy is reduced from 267 Jat the nitrogen content of 0 to 228 Jat the nitrogen content of 0.28%.Rockwell hardness

tensile strength and yield strength of the test steel are increased with the increase of nitrogen content.When the nitrogen content is 0.28%

the desirable mechanical properties of 06Cr19Ni10 steel are presented

where the Rockwell hardness

tensile strength

yield strength and elongation after fracture reach 95.4 HRB

814 MPa

437 MPa

52.5%

respectively.