S355J2 steel is a low-alloy high-strength steel under the European standard EN10025-2. The company can supply Z-15, Z-25, Z-35 direction performance and Class I, Class II, and Class III flaw detection. Our produced S355J2 steel, S355J2-Z15, and S355J2+N-Z35 plates have excellent internal quality, high density and stable performance.
S355J2-Z15, S355J2-Z35, S355J2+N-Z35, and S355J2-Z35 plates are based on S355J2 with increased steel plate thickness direction performance requirements, that is, Z performance. The meaning of S355J2-Z35 steel: J2 requires a negative 20 degree impact, and Z35 is the Z-direction performance of the steel plate
S355J2 steel chemical composition
C: 0.15-0.18%, Si: 0.30-0.50%, Mn: 1.30-1.50%, P≤0.015%, S≤0.004%, Cr≤0.30%, Ni≤0.50%, Mo≤0.10%, Cu≤0.30% , V≤0.15%, Nb≤0.05%, Ti≤0.05%
Mechanical properties of S355J2 steel
Yield strength Rp0.2≥275MPa, tensile strength Rm: 450～600MPa, elongation rate A≥18%, -20 impact energy KV2≥47J, steel plate thickness direction tensile section shrinkage rate Z≥35%.
S355J2 steel plate application
S355J2 steel plate is a European standard medium structural steel, mainly used in large-scale machinery manufacturing, equipment bases, large-scale welded steel structures, buildings, bridges and other fields. With the continuous development of the economy and the large-scale demand for equipment, the demand for ultra-thick structural steel plates has gradually increased, and the technology of steel plates has become more and more stringent. At the same time, the added value of steel plates is relatively high, especially the production of ultra-thick steel plates is relatively difficult Big. To achieve the production of ultra-thick steel plates, the grain distribution in the rolling process of steel ingot production is uniform, and the defects such as pores and shrinkage porosity inside the steel plate are eliminated, and the strength and impact toughness are well matched. The thickness direction performance is better, and S355J2, S355J2-Z15, S355J2+N-Z35 hot rolled plates are suitable for mass production.
