How much do you know about S235J2W bridge structural steel

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How much do you know about S235J2W bridge structural steel

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In March, the global crude steel output outside China fell by 11.89% to 68.08 million tons, the highest decline since 2009. Among the major steel producing regions, the EU led the decline, followed by India, Japan, South Korea and the United States. In the first quarter, the global S235J2W bridge structural steel, crude steel output outside China was 209 million tons, down 4.29% year on year.

A709Gr.36 steel plate is used in construction steel structures, construction machinery and other steel structures, and has been exported to South Korea, Singapore, Malaysia, Dubai, Nigeria and other countries. The S235J2W bridge structural steel) cumulative export volume has reached more than 10,000 tons. Construction steel structure, construction machinery, mining and mountain machinery, trucks, bridges, pressure vessels, especially for construction and engineering machinery parts that require good weldability and toughness.

The effect of nitrogen (N) on the properties of S235J2W bridge structural steel 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 S235J2W bridge structural steel and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.

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