S355J2 steel plate introduction: S355J2 is a European standard grade equivalent to the national standard Q345D. it is a low-alloy high-strength structural steel, because of its good with good impact toughness and welding performance so this grade of steel plate in a variety of industries are widely used.
Low-alloy high-strength structural steel role: for construction, bridges, ships, vehicles, pressure vessels and other structures, carbon content (melting analysis) is generally not greater than 0.20%, the total alloying element content is generally not greater than 2.5%, the yield strength of not less than 295MPa, with good impact toughness and welding performance of low-alloy steel.
S355J2 steel plate implementation standard: EN10025-2.
S355J2 steel plate application scope: S355J2 is the European standard in the structural steel, mainly used in large-scale machinery manufacturing, equipment base, large welded steel structure, construction, bridges and other fields. With the continuous development of the economy, the demand for large-scale equipment, the demand for ultra-thick structural steel plate gradually increased, while the technology of steel plate is becoming more and more stringent, while the added value of steel plate is relatively high, especially the production of ultra-thick steel plate is relatively difficult. Realize the production of ultra-thick steel plate, the use of ingot production rolling process grain distribution uniformity, eliminate the steel plate internal porosity, shrinkage and other defects, to meet the strength and impact toughness of a good match, the thickness of the direction of the performance is more good, suitable for mass production.
