Hot rolled EN steel grade S355JR plates welding property

EN steel grade S355JR plates and Q690CF plate are hot rolled steel plates. The chemical composition of Q690CF steel is as follows: C: 0.05-0.08%, Si: 0.22-0.30%, Mn: 1.6-2.0%, Al: 0.2-0.35%, Cr: 0.10-0.35%, Mo: 0.20-0.35%, Ni: 0.1-0.4%, Cu: 0.15-0.3%, Nb: 0.025-0.045%, V: 0.01-0.03%, Ti: 0.005-0.03%, P ≤ 0.010%, S ≤ 0.008% by mass percentage, the remaining is Fe and unavoidable impurities.

The company attaches great importance to systematic management, and has passed the EN steel grade S355JR plates ISO9001 quality management system, ISO14001 environmental management system, OHSAS18001 occupational health and safety management system, and ISO 9001: 2008 certification. Insist on EN steel grade S355JR plates quality and promote brand development. The company's physical and chemical testing equipment is fully equipped and the quality management operation is standardized. Since 2002, the national, provincial, and municipal product quality inspection random inspection pass rates are all 100%.

The main competitive means adopted by major domestic ports are to expand ports, build deep-water berths and channels, improve service quality to reduce the comprehensive cost of customers, and at the same time, to improve competitive advantage, we should also take appropriate measures to reduce relevant costs and prices.

From the ship plate to our building materials, steel plate is needed everywhere in our daily life. The quality of EN steel grade S355JR plates, steel plate is also related to each of us. Therefore, the quality of steel plate should be strictly controlled from manufacturer to the user. Once there are quality problems with steel plate, it is very easy to generate major events endangering people's lives.