1.1 This specification covers the chemical, mechanical, and metallurgical requirements for wrought nitrogen strengthened 22 chromium - 13 nickel - 5 manganese - 2.5 molybdenum stainless steel alloy bar and wire for surgical implants.1.2 The valu This specification covers the chemical, mechanical, and metallurgical requirements for wrought nitrogen strengthened 22chromium-13nickel-5manganese-2.5molybdenum stainless steel alloy bar and wire for surgical implants (UNS S20910). Materials shall be