H13 Steel

H13 is an air quench tool steel. The "H" indicates that this is a Heat Resistant Tool Steel, intended for hot work. It can take heat up to 1300 degreesF, (700 degreesC).

Chemical make up:
Carbon - 0.40%
Manganese - 0.35%
Silicon - 1.00%
Chromium - 5.20%
Molybdenum - 1.30%
Vanadium - 0.95%
Sulfur - 0.005% max.
((Chemical analysis pulled from HeatTreatOfToolSteels ))

-- AlbinDrzewianowski - 16 Dec 2007