Welcome to BBN High Strength Steels Factory
Structural steel plate S690QL steel plate manufacturers discount online 15*2320*9790, 12.5*2060*7410, 12*1540*5390, 12.5*1730*14930, 11*3910*6450, 17*2000*10650, 13.5*1905*8920, 6*1730*7840, 12.5*3790*8900, 12.5*3600*8810, 32*1301*6600, 12.5*1530*8000, 12*1590*9770, 16*2300*14200, 14.5*3690*10960, 20*2100*8950, 6*1800*4500, 14*1700*9200, 12.5*1790*15910, 5*1829*6096, 13*3200*10700, 9*1301*4000, 11*1510*5370, 12.5*1730*14770, 12.7*1829*6096, 13*2970*9800, 13.5*2890*5350, 12.5*2145*10360, 14*1860*13880, 24*2715*7800.
We do sand blasting and shop primer for various S690QL steel plate manufacturers steel plates such as carbon steel plates, high strength low alloy steel plates, shipbuilding steel plates, etc. before delivery, so as to protect the steel plates from going rust during transportation. Our sand blasting standard is SA2.5, and shop primer S690QL steel plate manufacturers thickness is 20μm or so. Our shop primer has been certified by ABS, LR, BV etc. authorities.
S690QL steel plate manufacturers 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.
Strip steel is mainly divided into hot-rolled ordinary strip steel, cold-rolled ordinary strip steel, hot-rolled high-quality strip steel and cold-rolled high-quality strip steel. The S690QL steel plate manufacturers, hot-rolled carbon strip steel is made of ordinary carbon structural steel, and is hot-rolled into strip steel with a thickness of 1.80-6.00mm and a width of 50-1200mm. The hot-rolled carbon strip steel is mainly used for the manufacture of cold-rolled billets, cold-formed steel billets, welded steel pipe billets, bicycles, and small hardware products.
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