BS4659 BA2 AISI A2 SAE

A2 Tool Steel characteristics - High hardenability, high degree of dimensional stability in heat treatment, good wear resistance, fatigue life, toughness, and deep hardening qualities. Applications include cold forming, blanking and bending dies, forming rolls, drill bushings, knurling tools, master dies and gages. AISI Medium-Alloy, Air-Hardening Tool Steels A2, UNS T30102, ASTM A681, FED QQ-T-570, SAE J437, SAE J438, DIN 1.2363, AFNOR Z 100 CDV 5 (Fr), JIS SKD 12, SS14 2260 (Sweden), B.S. BA 2