Welcome to Henan BBN Steel

  • zhengzhou
    henan ,China
  • Opening Time
    Mon - Sat: 08.00 to 18.00
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The company adheres to the people-oriented concept and takes "learning, sharing, gratitude, integrity, respect and responsibility" as the enterprise values. Advanced equipment, scientific standardized management, strict quality assurance system and high-quality team are the core competitiveness of the company. The company will continue to provide customers with steel material s355j2 high-quality, timely and perfect steel products and services under the guidance of the mission of "striving for perfection to meet customer needs".

The company has a group of experienced steel plate continuous processing line construction, production management, operation and professional and technical personnel. The company is a modern enterprise integrating scientific research and development, production processing, sales and service. Our main products include hot rolled plates, seamless pipes, steel material s355j2 and steel structures. At the same time, it also adheres to international standards and adheres to the international line.

Online sale hot rolled plate 3000 tons steel material s355j2 in Tianjin city50*2180*10000, 50*2500*12000, 50*2460*9250, 50*2440*9450, 50*2200*12003, 50*2200*12000, 50*2200*12004, 50*2430*7600, 50*2440*4200, 70*1620*7400, 50*2440*14200, 60*2500*7700, 50*2380*11400, 60*2500*10100, 66*2920*11000, 75*2000*8750, 50*2430*7700, 50*2200*11850, 70*1600*6000, 89*2600*6650, 50*2300*11600, 70*2920*8400, 100*2220*3050, 105*2560*7040.

steel material s355j2 seamless pipe belongs to high strength medium carbon steel, with certain plasticity and toughness, high strength and good machinability. Good comprehensive mechanical properties can be obtained by quenching and tempering treatment. In addition, the hardenability of 45# seamless pipe is poor, and the water quenching is easy to produce cracks. After quenching and tempering, the small and medium-sized parts can obtain better toughness and higher hardness. For large parts (the section size is more than 80mm), normalizing treatment is appropriate. But the weldability of No.45 steel is poor. The weldment should be preheated before welding and annealed after welding to eliminate welding stress.

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