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 A514 Gr B QT 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.
20G steel is boiler steel, which is similar to No. 20 carbon steel. The difference is that 20G steel has higher and stricter inspection standards than A514 Gr B QT steel plate, No. 20 carbon steel for harmful impurities and internal defects. That is to say, 20G steel is specially produced for boiler pressure vessels. It is special purpose "No. 20 carbon steel". The use of 20G steel to make boilers is not because it is more resistant to burning than other steels such as A514 Gr B QT steel plate, but because of its strength, toughness, ductility, weldability, temperature influence, fatigue fracture, price and cost, etc. 20G steel is most suitable for use in medium and low pressure boilers.
Quenching and tempering (QT) is a double heat treatment process of quenching and high temperature tempering. In general, medium carbon steel and medium A514 Gr B QT steel plate carbon alloy steel often need quenching and tempering treatment. Quenching and tempering can make iron and steel parts obtain a good combination of strength and toughness, with high strength, excellent toughness, plasticity, cutting performance, etc. Some A514 Gr B QT steel plate alloy steel or low alloy steel must be quenched and tempered to obtain good comprehensive properties. These steels can also be called quenched and tempered steels.
The strip steel thickness is generally below 6mm, which is convenient for crimping and processing. You should choose the A514 Gr B QT steel plate, strip steel specifications according to your own purposes. The specifications and materials used for different purposes are different, so you must confirm it before buying. It is best to ask professionals to give advice before purchasing strip steel, and purchase the specifications and types you need according to the corresponding requirements.
The company specializes in heavy plate cutting, carbon steel pplate processing, carbon plate welding processing and sales of wide and thick steel A514 Gr B QT steel plate plates. It has high-quality CNC steel plate cutting and processing equipment, a professional technical personnel team, and supporting logistics distribution and after-sales service system. BBN company provides customers with solutions at low prices, high quality, and fast response service.
