Description

H42 is a high-speed tool steel known for its excellent cutting performance, high wear resistance, and good toughness. It is commonly used in various industrial applications requiring high-speed cutting tools.

Applications

H42 tool steel is widely used in the manufacturing of drills, end mills, reamers, taps, and other cutting tools where high hardness, wear resistance, and good toughness are desired.

Blacksmith Applications

In blacksmithing, H42 can be used to create specialized tools such as punches, chisels, and hot-working tools where high hardness, great cutting performance, and excellent wear resistance are essential.

H42 Forging Temperature

Forging of H42 tool steel should be done at a temperature range of 1900°F - 2200°F (1038°C to 1204°C), followed by slow cooling in a furnace or insulating material to relieve internal stresses.

H42 Heat Treatment

H42 Annealing Temperature

Annealing H42 tool steel is typically performed at 1600°F - 1700°F (871°C to 927°C) for a sufficient amount of time, followed by slow cooling in the furnace to reduce hardness and improve machinability.

H42 Normalizing Temperature

Normalizing of H42 tool steel is done by heating it to 1650°F - 1750°F (899°C to 954°C) for a proper soak time, followed by cooling in air to refine the grain structure and improve machinability.

H42 Hardening Temperature

Hardening of H42 tool steel is achieved by heating it to 2175°F - 2250°F (1191°C to 1232°C) and then quenching it in oil or air to obtain maximum hardness and wear resistance.

H42 Tempering Temperature

To achieve the desired hardness and toughness, tempering of H42 tool steel should be performed between 900°F to 1100°F (482°C to 593°C), followed by air cooling.

Machinability

H42 tool steel has good machinability with appropriate cutting tools and techniques.

Weldability

H42 tool steel has limited weldability and is not recommended for welding. Precautions should be taken to avoid cracking and damage to the material.