A6 is a air-hardening tool steel that exhibits good toughness and superb dimensional stability.
Specifications:
UNS T30106, ASTM A6, ASTM A-681, QQ-T-570
Applications:
Blanking, mandrels, forming dies, chuck jaws, feed fingers, precision tools, spindles, heavy duty punches, coining dies, dowel pins, shear knives, gages.