A2 STEEL/ PLASTIC MOULD STEEL A2 Tool Steel Plate utilized in thermosetting plastic molds and typical hardened molds. A2 is American excessive-durability wear-resistant device metallic, belonging to wind-hardened metallic. Steels of the type A2, A3, A4, A6, A7, A8, A9, and A10 form air-hardening, medium alloy, cold work steels or group A steels.  AISI A2 Tool Steel is an air-hardening … Continue reading A2 STEEL/ PLASTIC MOULD STEEL/ AIR-HARDENING, MEDIUM-ALLOY, COLD-WORK STEELS: