H13 Tool Steel

Description

H13 is a hot work tool steel known for its excellent combination of high toughness and hot hardness. It is commonly used in applications where resistance to thermal fatigue, cracking, and heat checking is required.

Applications

H13 is widely used in die casting, forging, extrusion, and other hot work applications. It is suitable for use in molds, dies, inserts, punches, and other components subjected to high temperatures and mechanical stress.

Blacksmith Applications

H13 is commonly used by blacksmiths for forging hot working tools, such as hammers, chisels, punches, and drifts. Its high toughness and resistance to heat make it suitable for withstanding the demanding conditions of blacksmithing.

H13 Forging Temperature

Forging should be done between 1900°F - 2200°F (1038°C - 1204°C), followed by slow cooling in a furnace or insulating material to relieve internal stresses.

H13 Heat Treatment

H13 Annealing Temperature

Annealing is typically performed at 1600°F - 1650°F (871°C - 899°C) for a sufficient amount of time, followed by slow cooling in the furnace to obtain a soft and homogeneous structure.

H13 Normalizing Temperature

Normalizing can be carried out at 1650°F - 1700°F (899°C - 927°C) for a proper soak time, followed by cooling in still air or a controlled environment.

H13 Hardening Temperature

Hardening is achieved by heating the steel to 1800°F - 1900°F (982°C - 1038°C) and then quenching in oil or air to obtain the desired hardness and dimensional stability.

H13 Tempering Temperature

Tempering should be performed between 950°F - 1050°F (510°C - 566°C) to enhance the toughness and reduce the risk of brittleness. The specific tempering temperature depends on the desired hardness and tool application.

Machinability

H13 has a machinability rating of 60, which is considered good for a tool steel. Proper cutting tools and techniques must be used to ensure optimal results.

Weldability

H13 has good weldability with proper preheating and post-weld heat treatment. It is important to carefully control the welding process to avoid cracking and maintain the desired properties.

Chemical Analysis

The chemical make up of this steel.

Chemical Content (%)
Carbon (C)0.32-0.45
Chromium (Cr)4.75-5.50
Molybdenum (Mo)1.10-1.75
Vanadium (V)0.80-1.20
Silicon (Si)0.80-1.20
Iron (Fe)Balance