Reasons and countermeasures for failure of tensile fracture of S960QL hardness

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, S960QL hardness and steel structures. At the same time, it also adheres to international standards and adheres to the international line.

"BBN Steel Q345D hot rolled plates stock 202019.05*2050*10800, 27.5*3600*12000, 28.58*2172*12500, 48*3000*12813, 19.05*2185*12200, 22*3730*12100, 22.23*2080*12000, 55*1800*3200, 22.23*2178*12200, 24*2470*12800, 19.05*2187*12200, 27.5*3735*12000, 22.23*2181*12200, 59*2950*10000, 28.58*2171*12500, 16*1800*6860, 28.58*2172*12000, 16*1730*9500, 44*3000*5000, 14*1700*6970, 19*2185*11500, 14*1440*9700, 60*2950*10000(mm).

S355J2 steel plate S960QL hardness rolling process is controlled rolling process. In the rolling process, the ingot rolling temperature is 1000-1050℃; in the first stage, the low-speed and large reduction rolling process is adopted, the high-temperature stage is 950-1000℃, the rolling speed is 1.6-2.0m/s, the S960QL hardness single reduction rate is 15-20%, and the cumulative reduction rate is 40-45%, so as to ensure sufficient deformation of ingot. In the first stage, the start rolling temperature is 910-930℃, and the finish rolling temperature is ≤ 870℃.

Medium and heavy plate S960QL hardness inventory spot:
23*3190*9220, 23*2470*8400, 22.5*3050*7300, 23*3500*10800, 21*3500*8840, 22*3400*11550, 29.5*1750*7150, 25*2500*12000, 27*1500*5000, 36*2720*7950, 27*1920*6000, 25*2630*3300, 26*3480*6000, 27*1800*6000, 23*2430*12370, 22.5*2560*6000, 43.5*1600*6000, 28.5*2500*6700, 32*1850*6000, 27.5*3100*6390, 48.5*1600*6000, 23.5*3300*14000, 33*3500*7050, 50*1600*6000.

Tianjin warehouse mainly stores steel plates and steel pipes. The monthly replenishment is about 12000 tons. Our inventory cycle is short and flexible. Shanghai warehouse mainly stores S960QL hardness ,steel plate and section steel. The average monthly purchase volume is about 15000 tons. The geographical location of the warehouse has greatly improved our performance in terms of transportation and delivery time.

our company is a professional ASTM A573 Grade 70/A573 Gr.70 carbon manganese silicon steel plates steel exporter and a steel Stockist in china. We keep more than S960QL hardness 1000 tons ASTM A573 Grade 70/A573 Gr.70 carbon manganese silicon steel plates steel in stock every month.