EN 10025-6 S690QL equivalent ASTM yield strength psi

The effect of nitrogen (N) on the properties of EN 10025-6 S690QL equivalent ASTM and so on steel is similar to that of carbon and phosphorus. With the increase of nitrogen content, the strength of steel can be significantly improved, especially the plasticity, especially toughness, and the weldability will be decreased, and the cold brittleness will be intensified. At the same time, aging tendency, cold brittleness and hot brittleness will be increased, which will damage the weldability and cold bending property of steel. Therefore, the nitrogen content in EN 10025-6 S690QL equivalent ASTM and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.

Steel plates for high-rise buildings have the properties of easy welding, earthquake resistance, and low-temperature impact resistance, and are mainly used in large-scale projects such as high-rise buildings, super-tall buildings, large-span stadiums, airports, exhibition centers, and steel structure workshops. Compared with ordinary Q235B / Q345B steel plates, these plates EN 10025-6 S690QL equivalent ASTM for high-rise buildings have upper limits on yield strength and improved tensile strength, and have requirements for carbon equivalent and yield ratio indexes.

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.

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