QQ-T-580C, FEDERAL SPECIFICATION: TOOL STEEL, CARBON AND CARBON-VANADIUM (25-MAY-1977) [SUPERSEDING MIL-T-18291] [S/S BY ASTM A686]
QQ-T-580C, FEDERAL SPECIFICATION: TOOL STEEL, CARBON AND CARBON-VANADIUM (25-MAY-1977) [SUPERSEDING MIL-T-18291] [S/S BY ASTM A686]., This specification covers water-hardening, wrought, carbon tool steel as described in ASTM-A686.