Two grade steel and three grade steel difference, the construction of the use of thread steel in general how to use the level?
According to the difference of prestressing strength, the trend is that the strength is higher and higher. The quantity of grade two steel has been replaced by grade three steel, and this year there are many 400E resistant steel
The main difference is the intensity, according to the design and construction requirements to determine the level of use
The corresponding plasticity is a little worse. In the past, most of the rebar on the site was made of two grade steel. In the past few years, the country adjusted the standard brick, and gradually used three or even four steel. Two grade steel has been gradually withdrawn from the market, many large steel mills have not been produced
The difference is mainly in strength. The higher the grade, the greater the tensile strength.
