Effect of humidity and temperature on corrosion of EN steel grade S235J2 material

The company adheres to the "variety, quality and efficiency" road. We have established a technology center, a brand cultivation management system and a quality control system. Now the company has formed an independent innovation system integrating EN steel grade S235J2 material production, learning, research and marketing. Our company has passed ISO9001 quality management system certification and ISO10012 measurement management system certification.

The company is a professional manufacture and stock keeper of Q245R boiler steel plate, Q345R boiler plate, 15CrMoR boiler steel plate, SA516 Gr 70 boiler steel plate, 16MnDR boiler steel plate, EN steel grade S235J2 material, and so on steel materials. The steel product can be produced according to GB, ASTM, ASME, JIS, DIN and EN standards. The thickness range of the pressure vessel and boiler steel plates is 3mm - 180mm. The pressure vessel and boiler steel products are widely used in petroleum, chemical, paper, power, nuclear power, heat exchanger, condenser, food and beverage, medicine and other industries or engineering.

Grade Q420 steel has high strength, especially in the normalizing or normalizing and tempering state. EN steel grade S235J2 material, Q420 steel has high comprehensive mechanical properties. Q420 steel is mainly used for large ships, bridges, power station equipment, medium and high pressure boilers, high pressure vessels, rolling stock, hoisting machinery, mining machinery and other large welded structural parts. Grade Q460 steel, with high strength, has high comprehensive mechanical properties in normalizing, normalizing and tempering or quenching and tempering states. The quality grades are C, D, E. Q460 steel is used in various large engineering structures and light structures requiring high strength and heavy load.

Try to use EN steel grade S235J2 material high-quality alkaline covered electrode as much as possible, and don't use inferior electrode to save money. According to the theory of chromium poor, chromium carbide will be precipitated on the upper edge of the grain boundary of the weld and heat affected zone when the EN steel grade S235J2 material temperature range is between 450 ℃ and 850 ℃, resulting in chromium poor grain boundary, which is insufficient to resist corrosion.

EN steel grade S235J2 material, GB/T 16270 Q460C heavy plate is a high strength structural steel grade in quenched and tempered condition. Product EN steel grade S235J2 material stock size(mm) 6*2140*13000, 6*2080*8400, 45*1580*4900, 16*2200*9600, 12*2530*4100, 26.2*3082*4500, 16*1800*10000, 6*2160*8600, 14.5*2800*6400, 20*1600*12600, 6*2140*11500, 6*1590*8600, 22*1800*6000, 25*1800*8229, 12*2200*4300, 6*2080*8700,28.58*4343*12300, 40*2500*3400, and 81*2180*5000.

Since its establishment, the company has been deeply supported and loved by customers with its unique business philosophy and business model. The company has always adhered to the tenet of "credibility first, integrity-based, quality first" and sincerely serves new and old customers. At the same time, it keeps pace with the times based on market orientation, continuously expands offline channels, and gradually establishes a complete online E-commerce business management platform. We will always promote our after-sales service to make client satisfied with our goods.