AISI S7 tool steel is a shock-resistant air hardening steel. AISI S7 steel has exceptional impact properties plus the highest hardenability of shock resisting grades of tool steel.
AISI H12 steel is a 4.75~5.5% chromium, general-purpose hot work tool steel. ASTM/AISI H12 Steel is a deep-hardening, air-hardening steel that exhibits minimal size change during heat treatmnet.
H10 Tool Steel is one chromium hot-work tool steel that exhibits excellent resistance to softening at elevated temperature. H10 tool steel is recommended for difficult hot work tooling applications.
H13 Tool Steel is chromium hot-work tool steels. Due to H13 steel excellent combination of high toughness and fatigue resistance, AISI H13 hot work tool steel is used more than any other tool steel in tooling applications.