MIL-S-6758B, MILITARY SPECIFICATION: STEEL, CHROME-MOLYBDENUM (4130) BARS AND REFORGING STOCK (AIRCRAFT QUALITY) (18 MAY 1993) [S/S BY SAE-AMS-S-6758]

MIL-S-6758B, MILITARY SPECIFICATION: STEEL, CHROME-MOLYBDENUM (4130) BARS AND REFORGING STOCK (AIRCRAFT QUALITY) (18 MAY 1993) [S/S BY SAE-AMS-S-6758]., This specification covers chrome-molybdenum (4130) steel bars and forging stock of aircraft quality.