Welcome to BBN High Strength Steels Factory
SA36 carbon structural steel is a material belonging to the ASME boiler and pressure vessels. The products are produced in steel plates, steel sheets, steel bars, and section steels. The tensile strength is 400-550MPa; the yield point is greater than or equal to 250MPa. SA-36 steel production process: the steel is killed steel. Detailed specifications: S550Q steel thickness: 8-100mm, width: 1600-4020mm, length: 6000-17500mm. It is commonly used in the construction of bridges and buildings.
The effect of nitrogen (N) on the properties of S550Q 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 S550Q steel and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.
Strip steel is coiled and curved steel plate, which is different from common steel pipes and steel plates. Strip steel has obvious characteristics. First, it is thin and easy to curl, which is convenient for logistics and transportation. Second, the surface quality of S550Q steel, strip steel is good, the luster is bright and it has good flexibility. Third, the strip steel is easy to process. When you need to use it, you only need to straighten the bent part and you can directly process it. Fourth, the precision is high, and the strip steel can be made of plain carbon steel, carbon structure steel, spring steel, tool steel, stainless steel, etc.
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