Description

DIN 17102 StE420 is a low alloy high strength steel known for its excellent strength, toughness, and weldability. It is commonly used in various industrial applications.

Applications

DIN 17102 StE420 is widely used in structural parts, bridges, ships, vehicles, pressure vessels, and other components where high strength and good weldability are required.

Blacksmith Applications

DIN 17102 StE420 is commonly used in blacksmithing for forging various tools, such as hammers, chisels, punches, and other applications where strength and toughness are crucial.

DIN 17102 StE420 Forging Temperature

Forging should be done between 1100°C - 1300°C (2012°F to 2372°F), followed by slow cooling in a furnace or insulating material to relieve internal stresses.

DIN 17102 StE420 Heat Treatment

DIN 17102 StE420 Annealing Temperature

Annealing is typically performed at 850°C to 900°C (1562°F to 1652°F) for a sufficient amount of time, followed by slow cooling in the furnace to achieve desired properties.

DIN 17102 StE420 Normalizing Temperature

Normalizing can be carried out at 880°C to 930°C (1616°F to 1706°F) for a proper soak time, followed by air cooling or furnace cooling.

DIN 17102 StE420 Hardening Temperature

Hardening is achieved by heating the steel to 900°C to 950°C (1652°F to 1742°F) and then quenching in oil or water to achieve the desired hardness.

DIN 17102 StE420 Tempering Temperature

Tempering should be performed between 500°C to 650°C (932°F to 1202°F) to achieve the desired hardness and toughness.

Machinability

DIN 17102 StE420 has a machinability rating of 70, indicating good machinability with appropriate cutting tools and techniques.

Weldability

DIN 17102 StE420 has excellent weldability. Preheating and post-weld heat treatment are not usually required, but proper welding techniques and procedures should be followed.