摘要:
A high strength austenitic steel having a yield strength above 600 N/mm.sup.2 at 02% permanent strain, containing about 0.5 to 1.5% by weight of nitrogen, about 6 to 12% by weight cobalt, and less than 5% by weight nickel. The steel is treated at about 1050.degree. C. to 1200.degree. C. and then quenched in water.