H13 Tool Steel Technical Data

H-13 is a 5% chromium hot work tool steel designed for applications that require extreme toughness combined with good red-hardness. H-13 will allow an extra margin of safety in tools subject to heavy hammer blows, and those containing deep recesses or sharp corners. Although H-13 was designed as a hot work steel, it has solved many cold work applications where extra toughness could be gained with some sacrifice of wear resistance.

Note: K-mac does not sell this grade - Data is for reference only.

Carbon 0.32 - 0.45
Chromium 4.75 - 5.5
Manganese 0.2 - 0.5
Molybdenum 1.1 - 1.75
Phosphorus 0.03 max
Silicon 0.8 - 1.2
Sulphur 0.03 max
Vanadium 0.8 - 1.2

Specific Gravity 0.28 lb/in3
Density 0.28 lb/in3
Hardness, Rockwell C 50
Modulus of Elasticity 30000 ksi
Charpy Impact 14 ft-lb
Machinability 65 - 70 %
CTE, linear 20°C 6.28 μin/in-°F
CTE, linear 500°C 7.5 μin/in-°F
Thermal Conductivity 122 BTU-in/hr-ft2-°F
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