normal strength hull structural steel GL-B technical parameters

Z-direction steel refers to thick steel with good tensile resistance in thickness direction. In the application of steel plate, the reason for additional performance requirements on the thickness direction of steel is due to the existence of defects in the thickness direction of steel in the process of casting and rolling. This defect makes the steel prone to lamellar tearing during welding, which reduces or even loses the design bearing capacity of application. The Z-direction performance is required for normal strength hull structural steel GL-B and so on steel plate with the tensile force along the plate thickness direction greater than or equal to 40mm.

Our normal strength hull structural steel GL-B, CCS AH32 shipbuilding steel plates stock and specification (mm): 14.5*2450*5410, 14.5*4180*7500, 25.5*4210*6870, 14.5*2950*6570, 15.5*2200*7080, 15*2200*6720, 13*2190*8000, 21.5*1500*5480, 20.5*1500*6530, 11*2060*7550, 25.5*4230*7020, 16.5*2020*6180, 23*4210*5620, 23*4160*7310, 15*2430*11560, 15*2180*6720, 18.5*2450*7990, 11*3070*9200, 18.5*2800*7180, 23*3800*7100, 13*2610*8190, 13*1600*6900, 28*2330*5420, 17.5*2440*6220, 12.5*1630*5000, 13*1600*7390.

Since the beginning of this year, the global normal strength hull structural steel GL-B steel pipe industry, like many other industries, is facing severe market situation. The difference is that novel coronavirus pneumonia is not only affected by the epidemic, but also closely linked to the oil and gas industry, and the global normal strength hull structural steel GL-B steel tube industry will also suffer from the "flash collapse" of international oil prices in March.

"The latest data from the General Administration of Customs shows that from January to February 2020, China exported 500,000 tons of coal and lignite, a year-on-year decrease of 60.2%. From January to February, China exported 360,000 tons of coke and semi-coke, a year-on-year decrease of 474.2%. From January to February, China imported 68.06 million tons of coal and lignite, a year-on-year increase of 33.1%."