Characteristics of EN10028-5 P420M Steel
Alloy Special Steel Attributes: P420M falls under European standard pressure vessel plates and is classified as an alloy special steel according to EN 10020, with the numerical designation 1.8824.
Chemical Composition Control: Its typical composition includes carbon, silicon, manganese, and alloying elements, achieving a balance between strength and toughness through optimized composition. The content of harmful elements such as sulfur and phosphorus is strictly limited to ensure material purity and enhance resistance to brittle fracture.
Mechanical Property Characteristics: It exhibits a minimum yield strength of 420 MPa and a tensile strength ranging from 520 to 670 MPa, meeting the load-bearing requirements of high-pressure equipment. Its excellent impact toughness makes it suitable for low-temperature operating conditions.
Specialized Adaptation for Pressure Vessels: Specifically designed for pressure-bearing equipment such as industrial boilers and gas storage tanks, it has passed certification according to the EN10028-5 standard. It is suitable for manufacturing vessel structures that need to withstand high pressure, high temperature, or low temperature, ensuring safe operation throughout the equipment's entire lifecycle.
Welding Performance Optimization: Fine-grained microstructures are achieved through microalloying design and rolling process control, significantly improving the properties of the heat-affected zone during welding. The strength of welded joints closely matches that of the base material, meeting stringent welding requirements in pressure vessel manufacturing.
