The company has formed a production scale of steel plates, steel pipes, steel profiles, and other products, with a planned layout of science, advanced technology and equipment, reasonable resource allocation, environmental protection, energy saving and high efficiency. BBN company has become a large-scale iron and steel enterprise integrating steel NV F40
hull steel structural plate production, mineral resource development, steel structure and engineering construction, real estate and modern logistics.The company adheres to green development, supported by scientific and technological innovation and technological progress, vigorously advocates the production and life style of saving, environmental protection, civilization and low carbon, adheres to the new industrialization road and the sustainable development road. Actively carry out international trade and maintain stable economic and trade relations with more than 80 countries and regions including the United States, Germany, France, the United Kingdom, Japan, South Korea and Australia.No. 45 steel is commonly used medium carbon quenched and tempered structural steel. The cold plasticity of No. 45 steel is generally better than NV F40 hull steel structural plate. Annealing and normalizing are better than quenching and tempering. No. 45 steel has higher strength and better machinability than Q345 steel. After proper heat treatment, it can obtain certain toughness, plasticity and wear resistance. No. 45 steel is suitable for hydrogen welding and argon arc welding, but not suitable for gas welding. Preheating is required before welding, and stress relief annealing shall be conducted after welding.NV F40 hull steel structural plate,The purpose of alloying Q345B steel is to use the interaction of alloy elements with iron and carbon and the effect on iron-carbon phase diagram and the heat treatment of steel to improve the structure and properties of steel. Interaction of alloying elements with iron and carbon: After alloying elements are added to steel, they mainly exist in steel in three forms. That is: forming a solid solution with iron; forming carbides with carbon; and possibly forming intermetallic compounds in high alloy steels.NV F40 hull steel structural plate,As one of the large professional metallurgical manufacturers in China, the strength of the brand, quality assurance, professional after-sales Every day we are making unremitting efforts to challenge higher quality products and more satisfactory services Customer demand is our pursuit, and win customer satisfaction with quality BBN aftersales team is responsible to solve the problem of technical support and quality, service complaints,NV F40 hull steel structural plate.
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