CCS Grade B hot rolled steel is a ordinary strength marine steel plate. Our plates and sheets thickness are supplied up to 150mm. We have stock of A573 Gr 70 structural steel plate, CCS Grade B hot rolled steel: 5.5*2790*10680, 27*1700*4350, 18*2000*10000, 9*2310*7060, 27*1700*4350, 45*2200*10000, 12*2000*10000, 16*2000*10000, 50*1770*7730, 14*1800*10000, 14*2000*10000, 11*1650*9000, 75*1050*9140, 40*2200*10000, 18*2000*9820, 14*2000*10000, 30*1500*6000, 75*1430*9140, 40*2000*8000, 80*1800*7000.
Standing at a new historical starting point, we adapt to the requirements of supply side A573 Gr 70 structural steel plate structural reform, adhere to the overall strategy of "innovation driven, quality leading, quality improving and efficiency increasing, transformation and development", and constantly improve the development concept and development level with a forward-looking vision and grand vision. Now we have been ranked the International leading A573 Gr 70 structural steel plate steel materials supplier.
Since the welding process is often used in the fabrication and processing of steel structures, it is very important for low-alloy high-strength steels of such purpose to be welded using the arc welding process that is widely used in thin thickness plates and steel strips. Yes, the welding seam of the steel structure should have the required strength and toughness, so as to withstand the most unfavorable conditions for the intended use. At present, the development of A573 Gr 70 structural steel plate, low-alloy high-strength steels is carried out simultaneously with the development of various welding processes. Most low-alloy high-strength steels can be welded well.
Composition characteristics of low alloy structural steel, A573 Gr 70 structural steel plate: (1) Low carbon: the carbon content of low alloy structural steel is less than 0.20% due to the high requirements of toughness, weldability and cold formability. (2) The alloy elements such as manganese are added. (3) The addition of Nb, Ti or V and other auxiliary elements: a small amount of Nb, Ti or V forms fine carbides or carbonitrides in the steel, which is beneficial to obtain fine ferrite grains and improve the strength and toughness of low alloy structural steel. In addition, adding a small amount of copper (≤ 0.4%) and phosphorus (about 0.1%) can improve the corrosion resistance. The addition of a small amount of rare earth elements can remove sulfur and gas, purify the steel, and improve the toughness and process performance of low alloy structural steel.
Adhere to the spirit of quality first and user foremost, carry out maintenance and other work according to the requirements of the buyer's contract, and ensure that the engineering project and product after-sales play their application effectiveness. Our company guarantees to carry out self inspection and self supervision according to the quality management policy proposed by our company, and deliver a high-grade, perfect and excellent system engineering to users.
