A572 grade 65 high strength steel, Q960 steel plate can be used for cold working, bending and cutting. During gas cutting, cracks will not occur even without preheating. When preheating, Q960 quenched and tempered steel should be processed below tempering temperature. Compared with ordinary steel, Q960 quenched and tempered steel has good corrosion resistance, high hardness and good wear resistance.
After heating, a billet is refined for several passes of rolling, then edge cutting and straightening to become a A572 grade 65 high strength steel steel plate, which is called hot rolling. Due to its high strength, good toughness, easy processing, good weldability and other excellent properties, hot rolled steel plate products are widely used in shipbuilding, automobile, bridge, construction, machinery, pressure vessel and other manufacturing industries.
A572 grade 65 high strength steel 2020 stock in Tianjin: 7*2920*8200, 32*3000*7440, 14*2150*9300, 16*2200*10000, 12.5*2900*11000, 7*2920*8200, 14*1950*11000, 80*2200*10000, 16*2230*7650, 7*2920*8780, 32*2900*9700, 20*1950*9550, 10*2200*7200, 23.1*2590*7790, 20*1400*11400, 20*1950*9700, 7*2920*8780, 20.9*2851*7000, 25*1600*9300, 30*2200*9000, 14*1950*10550, 30*1600*8600.
In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and A572 grade 65 high strength steel pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.
