Description

BS EN 10025 S420 steel is a high-strength, low-alloy structural steel known for its excellent strength, weldability, and corrosion resistance. It is commonly used in construction and engineering applications.

Applications

BS EN 10025 S420 steel is widely used in the construction of bridges, buildings, offshore structures, and machinery where high strength and toughness are required.

Blacksmith Applications

BS EN 10025 S420 steel is not commonly used in blacksmithing due to its specific requirements and specialized applications in the construction industry.

BS EN 10025 S420 Forging Temperature

Forging of BS EN 10025 S420 steel is typically performed between 1100°C - 900°C, followed by slow cooling in still air or controlled furnace cooling.

BS EN 10025 S420 Heat Treatment

BS EN 10025 S420 Annealing Temperature

Annealing of BS EN 10025 S420 steel is usually carried out at temperatures ranging from 850°C to 900°C for a sufficient duration, followed by slow cooling in the furnace to relieve internal stresses.

BS EN 10025 S420 Normalizing Temperature

Normalizing can be done for BS EN 10025 S420 steel by heating it to 900°C to 950°C, followed by air cooling or controlled cooling in a furnace.

BS EN 10025 S420 Hardening Temperature

Hardening of BS EN 10025 S420 steel is achieved by heating it to around 890°C to 940°C, followed by water or oil quenching to achieve the desired hardness.

BS EN 10025 S420 Tempering Temperature

Tempering should be performed on BS EN 10025 S420 steel by heating it to 550°C to 660°C, followed by air cooling. This process helps enhance the toughness and ductility of the steel.

Machinability

BS EN 10025 S420 steel has a moderate machinability rating, requiring appropriate cutting tools and techniques to achieve good results.

Weldability

BS EN 10025 S420 steel has excellent weldability with common welding methods. Preheating and post-weld heat treatment may be required to achieve optimal weld quality and minimize the risk of cracking.