Welcome to BBN High Strength Steels Factory
The company specializes in the research and development, production and sales of S550Q steel seamless pipes, longitudinally welded pipes, large-diameter welded pipes, API 5L welded pipes, spiral welded pipes, and large-diameter thick-walled straight seam steel pipes. The company has S550Q steel five production lines in three major production workshops: large-diameter longitudinally welded pipe production workshop,S550Q steel rolled steel pipe production workshop, and thermally expanded steel pipe production workshop, with an annual production capacity of more than 100,000 tons.
The predecessor of Ningbo port is Ningbo Port Authority. Ningbo port consists of Beilun port, Zhenhai port, Ningbo port, Daxie port and Chuanshan port. It is a multi-functional and comprehensive modern deep-water port integrating inland river port, estuary port and seaport.
The main applications of normalizing are as follows:① For low carbon steel, S550Q steel. The hardness of low carbon steel after normalizing is slightly higher than that after annealing, and the toughness is also better, so normalizing can be used as the pretreatment of cutting.② For medium carbon steel, normalizing can be used as the final heat treatment instead of quenching and tempering treatment, or as the preparation treatment before surface quenching by induction heating.③ Normalizing can be used in tool steel, bearing steel, carburizing steel and so on, which can eliminate or inhibit the formation of network carbide, thus obtaining the good microstructure needed for spheroidizing annealing.④ Normalizing can refine the cast structure and improve the machinability of steel castings.
In December of 2015, our regular India customer sent us an inquiry for S550Q steel pipe. The inquiry requires no negative tolerance in both pipes’ outer diameter and pipe wall. After two weeks’ discussion, he put the order of 275 tons to us. The pipes are finished within just one month. Our customer come to our factory to inspect the quality and tolerance, all the products are well meet his demand. The pipes are arriving to Nhava Sheva port, customer is very happy with our products and service during the process.
2020 October stock S550Q steel product: 8*1800*10950, 16*2150*10950, 70*2270*7350, 6*2200*10000, 20*3200*4400, 20*2280*5800, 20*2100*10800, 70*2270*7000, 12*2050*5100, 20*3200*4400, 12*2000*11850, 14*2940*9600, 20*2150*10000, 70*2260*7700, 6*1950*10000, 12*2000*11850, 6*2200*10000, 14*2510*10950, 16*2150*10000, 70*2260*7240, 20*3200*4400, 6*2200*10000,20*2100*7000, 12*2500*8000, 20*2100*10750, 35*2200*6800, 12*2000*11850, 20*2100*7000, 31.2*2950*9380.
Company through its own S550Q steel website, multimedia, radio, newspapers, the group, the handbook of the corporate culture carrier, approved and publicity column, in-depth to carry out enterprise culture construction, also through photography, painting, calligraphy, cartoon, speech, and the songs of the enterprise design, various cultural and sports activities to carry out enterprise culture construction.
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