EN 10028-6 P460QL2 Boiler And Pressure Vessel Steel Plate

EN 10028-6 P460QL2 is a European standard specification for fine-grained, quenched and tempered steel plates used in boiler and pressure vessel applications. 

EN10028-6 P460QL2 Boiler And Pressure Vessel Steel Plate is a high-strength, low-temperature resistant steel ideal for critical pressure equipment. Its quenched & tempered microstructure ensures excellent toughness at -60°C, making it suitable for harsh environments.

P460QL2 offers a superior balance of strength and low-temperature toughness, making it suitable for even more extreme conditions involving higher pressures and lower temperatures.

Due to its combination of high strength, low-temperature toughness, and pressure resistance, it is primarily used in the following extreme-environment equipment:

1. Cryogenic Pressure Vessels: Liquefied natural gas (LNG) storage tanks, liquid nitrogen/oxygen storage tanks (must maintain toughness at -162°C).

2. High-Pressure Boilers & Power Plant Equipment: Steam drums for supercritical boilers, superheater headers, and nuclear power steam generator shells.

3. Chemical & Energy Applications: Cryogenic separation units, subsea gas pipelines (withstanding high pressure and cold seawater), hydrogenation reactors.

4. Special Industrial Equipment: Aerospace ground testing equipment (low-temperature, high-pressure simulation chambers), cryogenic liquid transport tanks, etc.

EN10028-6 P460QL2 Boiler And Pressure Vessel Steel Plate, with its high strength (460MPa grade), excellent impact toughness at -60°C, and good weldability, has become a critical material for low-temperature, high-pressure pressure vessels. It is widely used in energy, chemical, nuclear power, and other industries with stringent safety requirements. Its performance is ensured through strict chemical composition control, quenching and tempering processes, and non-destructive testing.

Welding & Fabrication

1. Weldability: Good (preheating & post-weld heat treatment may be required depending on thickness).

2. Recommended Welding Methods: SMAW, SAW, GMAW, FCAW.

3. Filler Metals: Should match or overmatch base metal properties (e.g., EN ISO 16834 for high-strength applications).