high strength low alloy steel plate S690QL stock with good price

Composition characteristics of Q420 alloy steel plate: 1.Low carbon: Due to the high requirements for toughness, weldability and cold forming performance, its carbon content does not exceed 0.20%. 2. Add manganese-based alloy elements. 3. Add auxiliary elements such as niobium, titanium or vanadium, which is beneficial to obtain fine ferrite grains and improve the strength and toughness of the Q420 alloy steel, high strength low alloy steel plate S690QL.

Increasing the use of high-end steel will help reduce carbon emissions. The use of high-strength, high-toughness, corrosion-resistant and wear-resistant, fatigue-resistant, and long-life steel materials should be increased; on the basis of meeting the requirements for the use of steel products, the integrated application of structural lightweight design, lightweight materials, and lightweight manufacturing technologies should be realized; Improve the yield rate of steel and optimize the steel recycling system.

Plate 20 to 30mm thick high strength low alloy steel plate S690QL product: 20*1400*11400, 20*2100*7000, 20*2500*6200, 20*2933*7300, 20*3200*4400, 20.9*2851*7000, 21*2100*8810, 21.5*1630*13480, 22*3400*13000, 23.1*2590*7790, 25*1950*10150, 25*1950*9700, 25*2100*8400, 25*2100*8650, 25*2400*11600, 25*2400*8200, 28*2170*13000, 30*1600*10720, 30*1600*8600.

Nickel element is mainly used to form and stabilize the austenite structure, so that the high strength low alloy steel plate S690QL steel has good mechanical properties, corrosion resistance and process performance. Molybdenum can quickly passivate stainless acid-resistant steel, and improve the corrosion resistance to solutions containing chloride ions and other non-oxidizing media. Titanium and niobium are usually used to fix the carbon in alloy steel and make it generate stable carbides to reduce the harmful effect of carbon on the corrosion resistance of alloy steel.